Insights · TAFE, Vocational Training, Apprentice Workshop, RTO & Trade College

TAFE, Vocational Training, Apprentice Workshop, RTO, Skills Centre & Trade College HVAC Duct Guide — Automotive, Welding, Carpentry, Stonemason, Culinary, HVAC&R

An engineer-led HVAC ductwork specification guide for Australian TAFE institutes, registered training organisations, apprentice workshops, skills centres and trade colleges — written for the consulting engineers, capital works teams, mechanical contractors and ducting fabricators who actually have to deliver these projects. Covers AS 1668.2 outdoor air, AS/NZS 1715 respiratory protective equipment, AS 1885 weld fume, AS/NZS 60079 hazardous area classification, AS 3957 dust hazard, NFPA 660 (2025) combined dust deflagration standard, NFPA 96 commercial kitchen exhaust applied to culinary apprentice training, AS/NZS 2243 series laboratory safety, the ASQA Australian Skills Quality Authority compliance framework, the VET Quality Framework, the Standards for Registered Training Organisations 2015, and the Australian Qualifications Framework training packages — UEE Electrotechnology, UEP Plumbing, AUR Automotive, MEM Manufacturing Engineering, MSF Furnishing, CPC Construction, SIT Tourism, SHB Hairdressing, HLT Health, MSL Laboratory, ICT Information Communication Technology — that govern apprentice exposure and the operator-specific positions taken by TAFE NSW, TAFE Queensland, Holmesglen, Box Hill Institute, Kangan Institute, Chisholm, William Angliss, GOTAFE, Federation TAFE, CIT, TasTAFE, TAFE SA, South Metropolitan TAFE WA, North Metropolitan TAFE WA, Charles Darwin University, AIRAH Box Hill HVAC&R training, NECA Skills Training, MEGT Plumbing Training, ACWE Wagga Wagga and the private RTO sector.

By · Published · 36 min read · Reviewed by SBKJ QA & Engineering

Why TAFE workshop HVAC is its own engineering discipline

An Australian TAFE campus or registered training organisation occupies a peculiar position in the HVAC engineering landscape — somewhere between the K-12 school covered in our K-12 schools HVAC duct guide and the full university research environment covered in our university and TAFE workshop and engineering lab guide. The defining feature is the working trade environment. A TAFE campus is not just classrooms and lecture theatres. It is a working welding bay, a working automotive workshop with vehicle exhaust running indoors during dyno tests, a working stonemason booth cutting natural stone with apprentices on the wheel, a working culinary kitchen turning out training meals from 0700 to late afternoon, a working hairdressing salon with paying public clients, a working AIRAH HVAC&R training bench with refrigerant charges and brazed copper joints, and a working electrical and plumbing apprentice fit-out bay. The HVAC engineering brief has to support the trade activity, protect the apprentices who are by definition still learning the hazards, and document the compliance trail that survives an ASQA audit and a Safe Work Australia inspection.

This guide is the playbook SBKJ engineers walk through with mechanical contractors fitting out TAFE and RTO projects across Australia — whether the client is TAFE NSW delivering a Western Sydney trade skills hub upgrade, TAFE Queensland building a Sunshine Coast HVAC&R training centre, Holmesglen Institute redeveloping the Chadstone automotive workshop, Box Hill Institute extending the AIRAH-affiliated HVAC&R training centre, William Angliss Institute refurbishing the Melbourne CBD culinary apprentice kitchen, or the NECA Skills Training Centre upgrading the Melbourne electrical apprentice bay. The standards converge: AS 1668.2 for outdoor air, NCC Class 8 industrial overlaid on Class 5 office and Class 9b assembly, AS/NZS 4254 for the ductwork, AS 2107 for acoustics, AS/NZS 1715 and 1716 for respiratory protective equipment selection, AS 1885 for weld fume, AS/NZS 60079 for hazardous area classification at gas cylinder and LPG reception, AS 3957 for dust hazard, NFPA 660 (2025) for combined dust deflagration, AS 1851 for fire damper testing, AS/NZS 2243.8 for any fume cupboard, AS/NZS 1428.1 for student accessibility under the DDA, and the Safe Work Australia Workplace Exposure Standards across silica, manganese, hexavalent chromium, formaldehyde, wood dust and dozens of other hazards. Add the ASQA compliance overlay — the Standards for Registered Training Organisations 2015, the VET Quality Framework and the Australian Qualifications Framework training packages — and the engineering brief gets dense.

The good news: the design problem is bounded. Australian TAFE and RTO facilities share a known cohort of zone types — administration, classroom and lecture, multipurpose and event space, student common and library, staff office, automotive workshop (light vehicle), heavy vehicle workshop, autobody and paint, precision engineering and CNC, welding apprentice bay, forging (rare), culinary and hospitality with commercial kitchen, hairdressing and beauty training salon, carpentry and joinery, stonemasonry and tiling, horticulture and landscaping, HVAC&R training, electrical trade, plumbing and gasfitting, construction and building, science laboratory, dental and clinical placement, film and music and recording. Once the schedule of zones is set, the ductwork specification follows mechanically. This guide walks through that specification zone by zone, with the regulatory hook for each decision and the practical SBKJ-line implications, then closes with a sector-by-sector walk through the operator landscape that drives the specifications.

The Australian regulatory stack for TAFE and RTO workshop HVAC

Twelve layers of regulation drive HVAC ductwork decisions in an Australian TAFE or RTO trade workshop project. Most consultants name four or five. The twelve layers, in priority order, are:

  1. National Construction Code (NCC) / Building Code of Australia (BCA). A TAFE campus mixes multiple classifications. Class 8 industrial covers the automotive workshops, welding bays, carpentry, stonemasonry, autobody and paint, precision engineering and CNC, electrical and plumbing apprentice bays, HVAC&R training and forging. Class 5 office covers administration, enrolment, careers offices, staff offices and student support. Class 9b assembly covers lecture theatres, classrooms above the occupancy threshold, multipurpose halls, conference rooms and event spaces. Class 6 covers culinary kitchens, retail training and hairdressing salons. Class 9a layered where any clinical placement or dental assistant treatment beds exist. Class 7b layered where heavy vehicle parts storage and supply chain training operate.
  2. AS 1668.2 — Mechanical ventilation in buildings. Table 3.2 sets outdoor air rates by space type — 10 L/s/person for general classrooms, 8 L/s/person for administration, 12 to 15 L/s/person for event spaces, 25 L/s/person for gymnasium during PE training, AS 1668.2 Section 5 covers commercial kitchen exhaust at the culinary apprentice school. For Class 8 workshops the ambient general ventilation runs 4 to 8 ACH depending on the trade, with local exhaust ventilation handling the contaminant capture at source rather than relying on dilution alone.
  3. AS 4254 — Ductwork for air handling systems. Parts 1 (flexible) and 2 (rigid) cover Australian ductwork construction. AS 4254.2 sets material gauges, joint construction, leakage classification (Class A is the tightest, Class C the loosest) and pressure testing. TAFE projects typically specify Class A for low-leakage paths (fume hood exhaust, kitchen exhaust, stonemason booth extract, paint booth exhaust, automotive tailpipe extraction) and Class B for general supply and return.
  4. AS/NZS 1715 — Selection, use and maintenance of respiratory protective equipment. AS/NZS 1716 — Respiratory protective devices. Together these govern apprentice respirator selection across welding (P2 or P3 minimum, PAPR for stainless), stonemasonry (P2 minimum, P3 preferred), carpentry (P2 for hardwood and MDF cutting), and paint booth (full-face air-supplied). The HVAC contribution is the engineering control hierarchy — engineering controls (LEV, downdraft, booth ventilation) reduce exposure first, RPE handles residual exposure.
  5. AS 1885 — Measurement of breathing zone exposures to welding fume. Sets the sampling method for welding fume exposure assessment at apprentice welding bays. The HVAC contribution is the engineering control — downdraft welding table, swivel-arm extraction at the arc, on-torch extraction — that brings the breathing zone exposure below the SWA WES for Mn, Fe2O3, Cr VI, Ni, Cu and the residual welding fume aggregate.
  6. AS 1554.1 and AS 1554.6 — Structural steel welding and stainless steel welding. Apprentice training delivers competence to these standards. The HVAC contribution is providing a training environment where the apprentice can practise to the standard without exceeding exposure limits.
  7. AS/NZS 60079 series — Explosive atmospheres. Critical at TAFE apprentice gas cylinder reception (welding bay — Ar, CO2, O2, acetylene, propane, helium), LPG forklift cylinder reception at vehicle workshops, forge furnace (rare apprentice training), and paint booth at autobody training. Hazardous area drawings classify Zone 0, Zone 1, Zone 2 (gas) and Zone 20, Zone 21, Zone 22 (dust). The HVAC contribution is conductive ductwork, earthing of metal components, spark-resistant fan construction, intrinsically safe electrical equipment in classified zones.
  8. AS 3957 — Combustible dust hazard explanation, supplemented by NFPA 660 (2025) Combined Dust Standard. NFPA 660 consolidated NFPA 652, NFPA 654, NFPA 664 and the other dust-specific standards into one document in 2025. Applies at TAFE carpentry and joinery (wood dust), stonemasonry (silica plus mineral dust), metalworking (aluminium and magnesium fine dust), and apprentice grinding (iron oxide). The HVAC contribution is conductive duct, explosion venting on dust collectors, no-return air design, full make-up air, deflagration index Kst sized for the dust mass loading.
  9. AS 1530.4 — Fire resistance of building elements. Provides the fire-rating test method for any duct passing through a fire-rated boundary. The duct or duct sleeve assembly must achieve the FRL of the construction it penetrates — typically 60/60/60 between classrooms and corridor, 120/120/120 between Class 8 workshop and adjacent Class 9b assembly.
  10. AS 2243 series — Safety in laboratories. For TAFE laboratory technician (MSL training package), dental assistant, nursing, veterinary technician and pathology training programs, AS 2243.2 (chemistry), AS 2243.3 (microbiological), AS 2243.4 (radiation safety) and AS 2243.8 (fume cupboards at 0.5 m/s ± 0.1 m/s face velocity) all apply.
  11. AS 1851 — Routine service of fire protection systems and equipment. Sets the annual drop-test requirement for fire and smoke dampers, the inspection frequency for fire-rated penetrations and the documentation expected at essential safety measures audits across the TAFE campus.
  12. ASQA — Australian Skills Quality Authority — and the VET Quality Framework. The Standards for Registered Training Organisations 2015 require the RTO to deliver each training package in a facility fit for purpose. The HVAC consultant must understand which training packages the campus delivers and design to support the practical delivery — a CPC30220 Certificate III in Carpentry cannot be delivered in a workshop without compliant dust extraction; a UEE32220 Certificate III in Refrigeration and Air Conditioning cannot be delivered without a refrigerant recovery station and adequate ventilation; a SHB30121 Certificate III in Hairdressing cannot be delivered without chair ventilation at chemical service positions.

Additional standards that surface on specific zones: AS 5601 (gas installations — culinary and welding apprentice gas), AS/NZS 4332 (specialty gas cylinder reception), AS 1940 (flammable liquid storage — chemistry, paint, carpentry adhesive), AS/NZS 3000 (electrical wiring rules — relevant where the workshop has mixed services), AS/NZS 4801 and AS/NZS ISO 45001 (OHS management systems), AS/NZS 2107 (acoustics — NC-30 to NC-35 lecture and theory, NC-45 to NC-50 workshop), AS 1657 (platforms — mezzanine plant rooms), AS 1428.1 (DDA accessibility for students with disability), AIRAH DA series Design Application notes (HVAC trade reference), Safe Work Australia Code of Practice — Welding Processes, Code of Practice — Working with Silica Dust, and the trade-specific National Training Packages already enumerated.

TAFE workshop HVAC duct — the workshop zone catalog

A modern TAFE or RTO campus contains a dozen or more distinct functional zones, each with its own HVAC engineering treatment. The administrative and learning zones are conventional; the trade workshops are where the engineering becomes specialised. The following sections walk each zone in detail.

Administration, reception, enrolment and careers office

Administration spaces are conventional office-grade HVAC under NCC Class 5. Design conditions: 22 to 24°C dry bulb, 40 to 60 percent relative humidity, NC-30 to NC-35 acoustic target (NC-30 in individual offices and careers counsellor rooms where confidentiality matters, NC-35 in open plan administration), 8 to 10 L/s/person outdoor air per AS 1668.2 Table 3.2 with ASHRAE 62.1 cross-check, MERV 13 filtration minimum. CO2 monitoring tied to BMS at 1,000 ppm target. Reception and student support areas need slightly elevated outdoor air for morning enrolment peaks and parent-evening events. Photocopy and printer alcoves need local extract for ozone (OEL 0.1 ppm STEL) emission from older laser printers. Server rooms and IT closets need dedicated cooling with N+1 redundancy for business-critical infrastructure. Separate AHU or AHU zone from the workshop cluster because the operating schedule is different — administration runs 0730 to 1730 while workshops can extend into evening trade school sessions.

Classroom, lecture theatre and theory room

Theory delivery zones are classified Class 9b assembly under the NCC. Design conditions: 22 to 24°C, 40 to 60 percent RH, NC-30 to NC-35 acoustic for speech intelligibility (critical at the back row of large lecture theatres), 8 to 10 L/s/person outdoor air with CO2 monitor target below 1,000 ppm, MERV 13 filtration, demand-controlled ventilation via NDIR CO2 sensor. Flexible furniture layout is the contemporary TAFE design pattern — classrooms reconfigure between lecture rows, group tables and presentation mode multiple times per day — so diffuser layout must work across all configurations rather than throwing onto a fixed seating arrangement. Stage, microphone and projector positions for the larger lecture theatres carry their own acoustic and heat-load considerations. Multi-zone VAV with reheat handles the solar gain differential across east-west oriented buildings. Each classroom is its own zone with a wall thermostat, occupancy sensor for after-hours override and the CO2 sensor.

Lecture theatres above 200 seats step up to the higher AS 1668.2 air change rates, displacement ventilation under raked seating, dedicated AHU with low external static (target under 250 Pa) to minimise fan noise, and NC-25 to NC-30 acoustic where the theatre also hosts community events. Smoke spill provision per AS 1668.1 where occupancy exceeds the trigger.

Multipurpose, conference and event hall

Most TAFE campuses include a multipurpose hall used for graduation ceremonies, industry expo open days, careers nights, parent-student information sessions and community hire. Design conditions: 22 to 24°C, 40 to 60 percent RH, NC-35 acoustic during occupied use, 12 to 15 L/s/person at full house per AS 1668.2 Table 3.2. The peak load is variable — 100 occupants for a smaller event up to 500 occupants for graduation — so the AHU must handle the full envelope with demand-controlled ventilation modulating between background rate and design rate. Reverberation time tunes to AS 2107 — 0.8 to 1.2 seconds depending on use mix. High-level supply diffusers with adjustable throw, low-level return, ball-impact protection where the hall doubles as an indoor sports space.

Student common, study, cafe, library and IT pod

Student amenity spaces are conventional comfort HVAC with elevated CO2 monitoring during peak study sessions. Design conditions: 22 to 24°C, 40 to 60 percent RH, NC-35 acoustic in cafe and common areas (where conversation buzz is acceptable), NC-30 in library reading rooms (silent study quality), 5 to 8 L/s/person outdoor air per AS 1668.2 Table 3.2, MERV 13 filtration. IT pod spaces with significant PC density (40 to 80 PCs in some TAFE configurations) carry substantial sensible heat load — 8 to 15 kW depending on the workstation count — requiring dedicated cooling sized for IT load plus occupancy plus solar gain. Cafe and food court space layered with light commercial kitchen extraction where hot food preparation runs on the floor — refer to the dedicated culinary section below for the apprentice kitchen treatment.

Staff room and staff office

Staff amenity follows administration HVAC pattern — 22 to 24°C, 40 to 60 percent RH, NC-35 acoustic, 8 to 10 L/s/person, MERV 13 filtration. Acoustic isolation between staff offices and adjacent classrooms or workshops prevents teacher-prep conversations bleeding into student-facing spaces. Staff rooms with kitchenettes need local extract over the cooking appliance.

Automotive workshop CO extract — apprentice mechanic training

The automotive workshop is one of the highest-engineering-effort zones at any TAFE campus. The apprentice mechanic training program — AUR Automotive Retail, Service and Repair training package — delivers practical instruction in light vehicle servicing, engine diagnostics, brake systems, wheel alignment, dyno testing and increasingly hybrid and electric vehicle systems. Working vehicles run indoors with engines fired during diagnostic procedures, dyno tests under load with full throttle for sustained periods, brake roller testing, and engine test bench operation. Multiple internal combustion engines running indoors generates significant CO, NOx, particulate, lube oil mist and brake dust exposure.

Design conditions. NCC Class 8 industrial. 18 to 26°C tolerance during apprentice activity (workshop comfort is secondary to contaminant control — the apprentice is working, not studying), 30 to 70 percent RH, NC-45 to NC-50 acoustic target (machinery noise governs — the AHU contribution is minor), 4 to 6 ACH ambient general ventilation, MERV 13 supply filtration.

Local exhaust — hose-on-tailpipe extraction. Each vehicle bay equipped with a Ronson, Eurovac, Plymovent or equivalent tailpipe extraction system — flexible insulated hose attached to the vehicle exhaust pipe, capturing the exhaust at source and ducting to a roof-mounted exhaust fan. Capture rate 250 to 400 L/s per bay depending on engine size and test duration. Heavy vehicle bays (Hino, Iveco, Mercedes truck) step up to 500 to 700 L/s per bay. Stainless steel duct from the hose connection through the building to the roof exhaust point — diesel exhaust contains sulphuric acid mist that corrodes galvanised steel within months. Form the stainless duct on the SBAL-V at stainless configuration, weld longitudinal seams on the SB-ZF1500 stitchwelder, segment elbows on the SBLR-600 elbow welder. The exhaust fan runs continuously during the workshop occupied hours regardless of whether vehicles are being run — the workshop ambient CO baseline is held below 5 ppm by the continuous extraction.

CO monitoring. Workplace Exposure Standard for CO is 30 ppm STEL with the engineering control target below 10 ppm. CO sensor at apprentice breathing zone height (1.5 m above floor), audible and visual alarm at 20 ppm, BMS integration with central fault logging. Where the workshop fails CO monitoring during a diagnostic run, the apprentice training session pauses, the workshop ventilation steps up to emergency mode, and the cause (typically incomplete tailpipe seal or a vehicle exhaust leak) is corrected before training resumes.

NOx monitoring. Diesel exhaust at heavy vehicle workshops generates NOx — Workplace Exposure Standard 3 ppm TWA NO2. Where the heavy vehicle bay sees daily diesel running, NOx sensor at breathing zone with alarm at 2 ppm. Local extraction at the tailpipe handles the bulk; ambient general ventilation handles residual.

Brake dust capture. Brake roller testing and brake service work generates asbestos-free brake pad dust (asbestos brake pads have been banned in Australia since 2003 but legacy vehicles in heritage restoration occasionally still carry asbestos brake material — handle with full asbestos abatement protocol). Brake dust contains copper, iron and trace heavy metals. Local extract at the brake roller and brake service position at 0.5 m/s capture velocity, dedicated stainless duct to a HEPA-filtered cartridge collector.

Battery acid and lube oil mist. Lead-acid battery service generates sulphuric acid mist (Workplace Exposure Standard 1 mg/m³ TWA), lithium battery service generates fluoride and lithium fume during fault conditions (apprentice EV training increasingly important), lube oil mist exposure (Workplace Exposure Standard 5 mg/m³ TWA) from oil change and engine service. Local extract at the battery service bench and the lubrication station, ducted to roof discharge.

LPG forklift cylinder reception. Where the workshop receives LPG cylinders for forklift training (typical at logistics and warehouse-adjacent campuses), the LPG cylinder reception area is classified Zone 2 around the cylinder per AS/NZS 60079, with Zone 1 inside the cabinet. Conductive ductwork, earthing of all metal components, spark-resistant fan construction. Continuous extraction at the cylinder cabinet vents any leak to outside without accumulation. CH4 detection at 1.25 percent LEL (25 percent of LEL is the alarm setpoint per AS 60079.14) interlocks emergency ventilation.

Refrigerant. Apprentice training on vehicle air conditioning systems uses R134a (legacy) and R1234yf (current MAC standard). Refrigerant recovery station required per AS/NZS 1677, leak detection at 1,000 ppm for R134a and 4,000 ppm for R1234yf. The HVAC contribution is general dilution ventilation at 4 to 6 ACH backing up the recovery station containment.

Heavy vehicle, truck, excavator and bus workshop

The heavy vehicle apprentice workshop is the automotive workshop scaled up — larger vehicle envelope, larger exhaust volumes, heavier mechanical lift, higher floor-mount tooling. AUR training packages cover heavy vehicle mechanical, mobile plant, agricultural machinery and forklift. TAFE Queensland (Toowoomba, Mt Isa, Townsville), TAFE NSW (Hunter, Western Sydney, Riverina), Federation TAFE (Ballarat) and Charles Darwin University all run substantial heavy vehicle training programs.

Design conditions. Class 8 industrial. NC-45 to NC-50, 4 to 6 ACH general, hose-on-tailpipe extraction at 500 to 700 L/s per heavy vehicle bay. The vehicle exhaust pipe diameter is larger than light vehicle, requiring a larger hose adapter and matched flexible duct.

Heavy diesel exhaust. Diesel particulate matter (DPM) is IARC Group 1 carcinogen. Apprentice exposure must be minimised through engineering controls — direct tailpipe capture is the primary control, no fall-back on ambient dilution. Where the workshop runs idling diesel engines for extended diagnostic procedures, the bay is held under negative pressure relative to the adjacent training space, with personnel access through a vestibule that limits cross-contamination.

Higher mechanical lift envelope. Heavy vehicle hoists have larger lift envelopes (up to 5 m vehicle height clearance) requiring higher ceilings and longer duct runs. The supply diffuser layout must throw across the workshop without creating drafts at the apprentice working position. Displacement ventilation from low sidewall to high return at the ridge is the dominant pattern.

Hydraulic oil mist and coolant aerosol. Heavy vehicle service generates hydraulic oil mist from leak diagnosis and component testing. Coolant aerosol from radiator service. Local extract at the test bench, ambient general ventilation handles the residual.

Autobody, panel, paint and smash repair apprentice workshop

The autobody apprentice workshop is one of the highest-hazard zones at any TAFE campus — pre-paint sanding generates respirable crystalline silica from filler and body fillers, polyester resin and epoxy adhesive exposure, paint booth operation with isocyanate-cured 2K paint, paint cure at 60 to 80°C in the booth, and high VOC exposure across the prep and paint stages.

Pre-paint sanding area. Class 8 industrial. Sanding of body filler generates respirable particulate including silica (filler content varies — modern body fillers are largely silica-reduced but legacy material still carries 5 to 15 percent crystalline silica). Downdraft sanding tables at each apprentice bay, capture velocity 0.5 m/s, ducted to a HEPA-filtered cartridge collector. P2 minimum, P3 preferred respirator.

Resin and epoxy mixing. Polyester resin (styrene Workplace Exposure Standard 50 ppm STEL) and epoxy adhesive (epichlorohydrin Workplace Exposure Standard 0.5 ppm) mixing carries inhalation and dermal exposure. Local extract at the mixing bench, dedicated stainless steel duct to roof discharge, P2 respirator with organic vapour cartridge.

Paint booth — separate fire-rated enclosure. The spray paint booth is a separate fire-rated room with downdraft airflow — supply at the ceiling at 0.3 to 0.5 m/s, exhaust at the floor through a grate to a wet scrubber or dry filter bank. Booth airflow 1.5 to 2.5 m³/s depending on booth size. AS/NZS 60079 Zone 1 inside the booth during spray operation, Zone 2 in the immediate surrounds. Intrinsically safe lighting, conductive flooring, grounded apprentice operator. The booth construction is welded 1.5 mm stainless steel on the inside surfaces with the SBAL-V at stainless and SB-ZF1500 stitchwelder for the welded longitudinal seams.

Isocyanate exposure. 2K isocyanate-cured paint (the dominant automotive finish) carries HDI hexamethylene diisocyanate and IPDI isophorone diisocyanate exposure. Workplace Exposure Standard 0.005 ppm TWA, 0.02 ppm STEL — among the most stringent in the SWA WES. Apprentice exposure is controlled by full-face air-supplied respirator (PAPR with breathing air supply), not P-class filter respirator. The HVAC contribution is the booth downdraft maintaining isocyanate concentration below the WES at any breathing zone monitoring position.

Paint cure at 60 to 80°C. After spray application the booth heats to 60 to 80°C for paint cure cycle (30 to 60 minutes depending on paint system). The booth ventilation cycles to recirculation during cure (with a small make-up bleed) to manage energy. Heat exchanger on the recirculation path captures the thermal energy. Cure cycle releases residual VOC and isocyanate that must be exhausted before the booth opens.

VOC compliance. Methyl ethyl ketone (MEK) Workplace Exposure Standard 200 ppm TWA, isopropyl alcohol (IPA) 400 ppm, ethyl acetate 200 ppm, toluene 50 ppm STEL (legacy solvent paint being phased out under stewardship programs), methyl isobutyl ketone (MIBK) 50 ppm, acetone 250 ppm. Compliance with AS 4332 and AS 4801. The general workshop solvent storage cabinet — paint thinner, cleaner, primer — is built per AS 1940 with extract at 6 to 10 ACH continuous.

Precision engineering, CNC and machining apprentice workshop

The precision engineering apprentice workshop — MEM Manufacturing Engineering training package — delivers Certificate III and IV in Engineering with sub-streams in fabrication, fitting, machining and CNC programming. Equipment includes 5-axis machining centres, lathes, milling machines, surface grinders, electrical discharge machining (EDM), and increasingly sheet metal fabrication where TAFE delivers fitter and turner apprenticeships with relevance to SBKJ-type duct fabrication training. Holmesglen Chadstone, Box Hill Whitehorse, Kangan Broadmeadows and TAFE NSW Western Sydney all run substantial precision engineering programs.

Design conditions. Class 8 industrial. 20 to 26°C, 40 to 60 percent RH (humidity stability important for precision tolerance — large temperature swings degrade machining accuracy), NC-45 to NC-50 acoustic, 4 to 6 ACH ambient general, MERV 13 supply.

Metal swarf and cutting fluid mist. Each machining centre generates swarf (chip waste) and cutting fluid mist. Workplace Exposure Standard 5 mg/m³ for oil mist. Enclosed machining centres with integrated coolant filtration handle this internally. Open lathes and mills require local extract at the cutting zone — typically a swivel-arm extraction system at 200 to 400 L/s with HEPA and oil mist filter. Cutting fluid (typically water-soluble synthetic) is biocide-treated to control microbial growth; biocide breakdown products require local extract at the fluid sump.

Coolant aerosol. Modern machining centres use high-pressure coolant delivery (50 to 80 bar through the spindle) which generates fine aerosol when the coolant impinges on the tool and workpiece. The aerosol carries the cutting fluid plus dissolved metal particles. Local extract at the spindle envelope at the manufacturer's specified flow rate, filtered through HEPA and activated carbon to manage residual odour.

Grinding dust. Surface grinder and pedestal grinder operation generates respirable iron oxide dust (Workplace Exposure Standard 5 mg/m³ for Fe2O3, 10 mg/m³ for total inhalable Fe). For stainless steel grinding the dust contains chromium and nickel — Cr VI Workplace Exposure Standard 0.05 mg/m³ STEL (the IARC Group 1 carcinogen), Ni inhalable 1 mg/m³. Apprentice grinding wheel work per AS/NZS 4499 with full PPE and local exhaust at the wheel.

EDM (electrical discharge machining). EDM generates dielectric fluid mist and metal vapour. Local exhaust at the EDM machine envelope, HEPA filtration on the discharge.

Sheet metal fabrication training. Where the workshop delivers sheet metal fabrication training — the closest TAFE program to SBKJ duct line operation — apprentices learn manual brake operation, hand seam folding, rivet and screw assembly, and increasingly CNC press brake and CNC laser cutting on an SBKJ-style production line. The SBPC1500 plasma cutter or a laser cutter generates plasma cutting fume requiring local extract; press brake operation is generally low emission. The workshop ambient ventilation handles residual.

Welding fume extraction apprentice — TAFE welding bay

The TAFE welding apprentice bay is the highest-engineering-precision zone for fume control. Apprentices learn TIG, MIG, MAG, SMAW (stick), oxy-acetylene gas welding and increasingly plasma cutting. Each process has its own fume signature and exposure profile. ACWE — the Australian College of Welding Engineers at Wagga Wagga — runs the most specialised welding training programs nationally; most TAFE campuses run general welding apprentice bays under MEM Manufacturing Engineering and CPC Construction training packages.

Design conditions. Class 8 industrial. 18 to 26°C tolerance, 30 to 70 percent RH, NC-45 to NC-50 acoustic, 6 to 10 ACH ambient general (higher than other workshops because the welding bay generates significant heat load and the local extraction must be backed up by ambient dilution), MERV 13 supply.

Welding fume composition. Mild steel welding generates Fe2O3 (iron oxide fume — Workplace Exposure Standard 5 mg/m³ TWA), Mn (manganese — 0.2 mg/m³ TWA inhalable, the controlling species at most welding operations), and trace alloying elements. Stainless steel welding adds Cr VI (hexavalent chromium — 0.05 mg/m³ STEL, IARC Group 1 carcinogen) and Ni (nickel — inhalable 1 mg/m³, insoluble 0.1 mg/m³). Galvanised steel welding releases ZnO (zinc oxide — 5 mg/m³ TWA, causes metal fume fever). Aluminium welding releases Al fume (5 mg/m³). Copper welding releases Cu fume (0.2 mg/m³). TIG welding generates ozone (0.1 ppm STEL). Oxy-acetylene gas welding adds CO (30 ppm STEL) and NOx (3 ppm TWA). Plasma cutting generates the highest fume mass per metre of cut — local extraction is essential.

Local extraction hierarchy. The engineering control hierarchy under AS 1885 and AS/NZS 1715 — substitute hazard where possible, engineering control next, RPE last. For TAFE apprentice welding the engineering controls are: (1) downdraft welding table at each apprentice bay — supply air at the bench surface drawn down through the table to a HEPA-filtered cartridge collector at the back, capture velocity 0.5 m/s at the arc; (2) swivel-arm fume extraction at the arc — articulated extraction arm with a hood at 250 to 400 L/s positioned by the apprentice within 300 mm of the weld; (3) on-torch fume extraction for MIG/MAG — extraction integrated into the MIG gun nozzle, 50 to 100 L/s flow at the arc; (4) ambient general dilution backing up the local extraction at 6 to 10 ACH; (5) PAPR powered air-purifying respirator for prolonged stainless steel welding where the local extraction cannot guarantee Cr VI below the STEL.

Welding curtain, UV and IR shield. Welding curtains around each apprentice bay block UV and IR radiation reaching other apprentices in the workshop. The curtains are non-airtight (smoke and fume cannot escape under or over the curtain into adjacent breathing zones) — the local extraction handles the fume containment, the curtain handles the radiation containment.

Apprentice gas cylinder reception. Argon, CO2, oxygen, acetylene, propane and helium cylinders deliver to the workshop through a dedicated cylinder reception zone. AS/NZS 4332 governs the specialty gas cylinder storage. AS 4839 covers acetylene specifically (acetylene cannot be stored on its side and requires dedicated storage handling). The cylinder reception zone is classified Zone 1 around any cylinder valve or regulator per AS/NZS 60079, Zone 2 in the broader cylinder storage area. Conductive ductwork, earthing, spark-resistant fan, intrinsically safe electrical. Continuous extraction at 0.5 m/s capture velocity across the cylinder valves vents any leak before accumulation. CH4 detection at 25 percent LEL (1.25 percent CH4 by volume LEL) interlocks emergency ventilation. The cylinder storage is sized per the AS/NZS 4332 separation distance table.

Local fume hood ducting. Form the local extraction duct in 0.8 to 1.2 mm galvanised steel on the SBAL-V galvanised auto duct line for the general fume extraction trunk. Where the duct sees prolonged stainless steel welding fume (chromium-bearing), upgrade to 1.5 mm 304 stainless on the SBAL-V at stainless configuration — galvanised duct degrades from chromium oxide attack over time. The collector is HEPA-filtered cartridge type with automatic pulse-back cleaning, return air to the workshop on the clean side (where the dust loading is mild steel) or single-pass to outside (where stainless steel fume dominates).

Forging and blacksmith — rare apprentice

Forging and blacksmith training is rare at modern TAFE — most campuses have phased out the program — but legacy operations continue at a few sites and heritage-trade specialty colleges. Coal forge or propane forge running at 1,200 to 1,400°C generates CO, NOx, coal dust and iron oxide fume. Where the program continues, the forge bay is treated as a high-temperature exhaust zone with stainless steel duct from the forge hood through the building to roof discharge, NFPA 86 industrial furnace standard referenced, and CO monitoring at the apprentice breathing zone.

Culinary commercial kitchen NFPA 96 — apprentice chef, baker, butcher training

The TAFE culinary apprentice school is a major engineering effort. William Angliss Institute in Melbourne CBD specialises in culinary and hospitality training — the largest single-site provider nationally. Holmesglen, TAFE NSW (Sydney, Hunter, Western Sydney), TAFE Queensland (Brisbane, Gold Coast, Sunshine Coast), TAFE SA, South Metropolitan TAFE WA and TasTAFE all run substantial culinary apprentice kitchens. The training packages — SIT Tourism, Hospitality and Events plus the apprentice chef SIT30821 Certificate III in Commercial Cookery — drive substantial commercial kitchen infrastructure.

Design conditions and regulatory framework. NCC Class 6 commercial. AS 1668.2 Section 5 commercial kitchen exhaust governs. NFPA 96 referenced as international best practice. UL 300 fire suppression at each hood.

Cooking line grease hood. The cooking line hood captures cooking effluent at 0.4 to 0.5 m/s capture velocity across the hood face. The hood envelope is welded 304 stainless steel on welded longitudinal seams — fabricated on the SBSF-1525 stainless duct forming machine for the hood plenum, then welded on the SB-ZF1500 automatic stitchwelder for grease integrity. Wok stations and char-grill add radiant heat and elevated capture velocity (0.5 to 0.7 m/s at the hood face).

Fire-rated kitchen exhaust riser. The kitchen exhaust duct runs in fire-rated construction from the hood through the building to roof discharge — typically a fire-rated enclosure around the duct providing the FRL of the wall it penetrates. Cleanouts at every change of direction per NFPA 96. Grease trap at the discharge point. Annual cleaning per the manufacturer's schedule with documentation.

Make-up air. Dedicated make-up air at 80 to 90 percent of exhaust rate maintains slight negative pressure relative to adjacent dining and learning areas — Brisbane, Sunshine Coast, Cairns and Darwin culinary schools size make-up air with substantial dehumidification capacity for the humid tropical climate. The make-up air supply is typically a separate AHU dedicated to the kitchen, not the same AHU serving the adjacent dining room.

Dining area, restaurant and front-of-house. Apprentice culinary training includes front-of-house service — the SIT30821 includes barista, beverage and service streams. The dining area is conventional commercial restaurant HVAC — 22 to 24°C, 40 to 60 percent RH, NC-35 to NC-40 acoustic, 10 to 12 L/s/person per AS 1668.2, MERV 13 supply on a dedicated AHU separate from the kitchen exhaust.

Bakery and pastry apprentice training. Apprentice baker training (FBP Food Processing training package, SIT30922 Certificate III in Patisserie) operates ovens at 180 to 240°C with steam injection. The bakery exhaust captures steam and combustion products from gas-fired ovens — local extract over each oven at 0.3 to 0.5 m/s capture velocity, dedicated stainless duct to roof discharge. Flour dust at the dough preparation bench requires local extract at the mixing bowl — flour dust is a deflagration hazard under NFPA 660 (2025) at sufficient mass loading.

Butcher apprentice training. Apprentice butcher training operates in a refrigerated meat room at 5°C with separate cutting, mincing and packaging zones. Refrigerated panel construction, low-air-velocity supply (below 0.15 m/s at occupant zone — high air velocity in cold environments creates uncomfortable wind chill on apprentices), MERV 13 supply, dedicated extract at the mincing position to capture meat aerosol.

Gas detection. Where the kitchen runs on natural gas (the dominant configuration), CH4 detection at 1.25 percent LEL interlocks emergency ventilation and isolates the gas supply at the meter. CO monitoring at 30 ppm STEL at the cooking line. Where the kitchen uses LPG bottles (rural campuses), AS/NZS 60079 hazardous area classification applies to the bottle reception zone.

Hairdressing, barbering, beauty and nail tech apprentice training

The TAFE hairdressing salon is a regulated commercial salon delivering paid services to the public while training apprentices. SHB Hairdressing training package — SHB30121 Certificate III in Hairdressing, SHB30421 Certificate III in Beauty Services, SHB30221 Certificate III in Make-up and SHB30521 Certificate III in Nail Technology — covers the major service streams. Holmesglen Moorabbin, Box Hill, Kangan, Chisholm Frankston, TAFE NSW Ultimo, TAFE Queensland Brisbane and South Metropolitan TAFE WA all run substantial hairdressing apprentice salons.

Design conditions. NCC Class 6 commercial. 22 to 24°C, 40 to 60 percent RH, NC-35 to NC-40 acoustic (some background salon buzz acceptable), 8 to 12 L/s/person outdoor air per AS 1668.2 (elevated from standard commercial because of the chemical service load), MERV 13 supply on a dedicated AHU.

Chemical exposure. Hair dye carries ammonia (NH3 Workplace Exposure Standard 25 ppm TWA, 35 ppm STEL), persulfate bleach (sodium persulfate, potassium persulfate, ammonium persulfate — sensitiser, occupational asthma hazard, no formal WES but ACGIH TLV 0.1 mg/m³), hydrogen peroxide (H2O2 Workplace Exposure Standard 1 ppm TWA), monoethanolamine MEA (3 ppm TWA in hair colour), and formaldehyde (Workplace Exposure Standard 1 ppm STEL — present in some hair smoothing treatments at higher concentration, controversial in keratin treatments). Nail tech service carries acetone (250 ppm TWA), methyl methacrylate MMA (banned for nail use but legacy product persists in some salons), ethyl methacrylate EMA, toluene (50 ppm STEL — legacy nail polish solvent), and nitrocellulose nail polish lacquer. Make-up training is lower exposure than hair and nail.

Chair extraction at chemical service position. Each hair colouring and bleaching chair equipped with local extraction at the chair — typically a flexible extraction arm positioned over the client's head during chemical service, capture velocity 0.4 to 0.5 m/s, ducted to roof discharge through a stainless steel duct (galvanised duct corrodes under prolonged peroxide and ammonia exposure). Nail tech bench equipped with downdraft extraction at the work surface — capture velocity 0.5 m/s, dedicated stainless duct to roof discharge with HEPA and activated carbon filtration.

Booth ventilation for chemical mixing. The chemical mixing area (where apprentices mix hair colour formulations) operates as a ventilated booth with 0.5 m/s capture velocity across the bench face, dedicated stainless duct to roof discharge. AS 1940 solvent storage cabinet for the chemical inventory.

Wet area separation. The shampoo and wet area runs as a separate climate-controlled zone with higher humidity tolerance (50 to 70 percent RH acceptable), tile floor with floor drains, and dedicated extract at the shampoo bowls.

Carpentry wood dust LEV — joinery and cabinet making apprentice

The TAFE carpentry, joinery and cabinet making apprentice workshop is governed by wood dust exposure. CPC Construction (Certificate III in Carpentry), MSF Furnishing (Certificate III in Cabinet Making and Timber Technology) and the apprentice joinery streams all deliver in workshops with substantial dust extraction infrastructure.

Design conditions. Class 8 industrial. 18 to 26°C, 30 to 60 percent RH, NC-45 to NC-50 acoustic, 6 to 8 ACH ambient general plus tool-tip extraction, MERV 13 supply.

Wood dust composition and exposure. Respirable wood dust Workplace Exposure Standard 5 mg/m³ TWA, inhalable wood dust 10 mg/m³ TWA. Hardwood dust is IARC Group 1 carcinogen for sinonasal cancer — apprentice exposure is the highest single concern in carpentry training. Softwood dust is lower hazard but still carries sensitisation risk for occupational asthma. MDF (medium density fibreboard) and chipboard cutting releases formaldehyde (Workplace Exposure Standard 1 ppm STEL) from the urea-formaldehyde resin binder — apprentice exposure to MDF dust combines the wood dust hazard with formaldehyde sensitisation.

Downdraft tables and tool-tip extract. Each apprentice bench equipped with a downdraft table at 0.5 m/s capture velocity across the bench face. Each machine — table saw, panel saw, router, sander, planer, jointer, mortiser, spindle moulder — equipped with hood-on-tool extraction at 200 to 500 L/s per machine depending on tool aggression. Hand-held tools (orbital sander, jigsaw) used with M-class portable dust extractor (HEPA-filtered) at the tool.

Trunk ductwork and collector. The trunk ductwork serves multiple machines into a baghouse or cartridge collector at 2,000 to 4,000 L/s per workshop. Spiral round duct at 18 to 20 m/s transport velocity minimum (lower velocity allows dust to settle in the duct creating a deflagration hazard). Form the spiral round on the SBFB-1500 spiral tubeformer for diameters up to 1500 mm, or the larger SBTF-1500, SBTF-1602 and SBTF-2020 tubeformers for diameters up to 2,000 mm. Spiral duct at 20 m/s transport velocity is the workhorse — round geometry handles the dust transport better than rectangular and survives differential pressure better.

NFPA 660 (2025) deflagration controls. Wood dust collection is a deflagration hazard. NFPA 660 (2025) — the consolidated Combined Dust Standard replacing NFPA 652, NFPA 654, NFPA 664 and others — governs. Engineering controls: earthing of all metal duct components, explosion vents on the collector sized to the wood dust deflagration index Kst, no-return air design with full make-up air at 90 percent of exhaust, spark detection at the duct inlet with deluge or diversion to a vented sacrificial chamber, isolation devices at the duct entry to prevent backflash. AS 3957 dust hazard guidance covers the Australian context.

Adhesive and finish exposure. Apprentice cabinet making uses PVA wood glue (low hazard), polyurethane adhesive (HDI exposure — Workplace Exposure Standard 0.005 ppm TWA), and contact adhesive (toluene and other VOC). Local extract at the adhesive application bench, dedicated duct to roof discharge.

Stonemason silicosis prevention — TAFE stonemasonry, tiling and bricklaying

The TAFE stonemasonry, tiling, bricklaying and plastering apprentice workshop is the single highest silicosis exposure risk in the entire Australian vocational training sector. Respirable crystalline silica RCS Workplace Exposure Standard is 0.05 mg/m³ TWA — halved from the previous 0.1 mg/m³ standard in 2020 in recognition of the silicosis crisis among engineered stone workers. From mid-2024 the Commonwealth and most states banned the fabrication, supply and installation of engineered stone benchtops containing crystalline silica, but RCS exposure from natural stone, tile, brick, mortar, concrete and screed remains active.

Design conditions. Class 8 industrial. 18 to 26°C, 30 to 60 percent RH, NC-45 to NC-50 acoustic, 8 to 10 ACH ambient general plus booth extraction, MERV 13 supply.

Wet methods as primary engineering control. Wet cutting and wet grinding is the primary engineering control — water suppression at the cutting wheel reduces airborne dust generation by 90 percent or more. Apprentice training must use wet methods as the default. Dry cutting is reserved for specific applications where wet cutting is impractical (specific carving techniques, dimensional measurement) and always under booth extraction with P3 respirator.

M-class or H-class dust extraction at the tool. Each cutting tool — angle grinder with diamond blade, wet saw, tile cutter, brick saw — equipped with on-tool dust extraction at M-class minimum (H-class preferred for sustained dry work). The extractor draws at 30 to 100 L/s per tool, HEPA filtered, with the filter changed when pressure drop indicates loading.

Ventilated stonemasonry booth. The dry-work apprentice cutting position operates in a ventilated booth with capture velocity 0.5 m/s across the booth face. Dedicated stainless duct (galvanised corrodes from cement lime exposure over time) to a HEPA-filtered cartridge collector with no return air to the workshop. The booth is signed and barriered to control access during cutting operations.

Apprentice respiratory protection. P2 respirator minimum, P3 preferred for any extended dry work. AS/NZS 1716 governs the respirator standards. AS/NZS 1715 covers selection — for sustained silica exposure above 0.05 mg/m³ a PAPR powered air-purifying respirator is required, not a half-face P2 filter mask.

Air monitoring records. Apprentice exposure monitoring records must be held for 40 years per the Safe Work Australia code of practice. Sample under representative training conditions during the apprenticeship — typically four-yearly sampling per apprentice with personal sampling pump at breathing zone height during the most exposure-intensive task.

Lime, gypsum and plaster apprentice training. Plastering apprentice work (CPC30320 Certificate III in Solid Plastering) handles lime, gypsum and plaster with lower silica content than natural stone but with significant inhalable particulate. P2 respirator minimum, local extract at the mixing bench.

Horticulture, landscaping and turf apprentice training

Horticulture and landscaping apprentice training (AHC Agriculture, Horticulture, Conservation and Land Management training package) runs predominantly outdoors with some indoor support spaces — greenhouse, propagation room, equipment workshop, classroom. The greenhouse runs at elevated humidity (60 to 80 percent RH) with controlled CO2 supplementation for plant growth (sometimes elevated to 1,000 to 1,500 ppm during photosynthesis — apprentice exposure must be limited and monitored). Pesticide and fertiliser exposure handled through PPE plus ventilated mixing booth. Nuisance dust from soil and bark handling. Pollen and mould spore exposure from plant material — air quality monitoring tied to apprentice asthma management.

AIRAH HVAC&R training centre — apprentice refrigeration and air conditioning

The AIRAH HVAC&R apprentice training centre at Box Hill (in close proximity to the SBKJ Box Hill North VIC office) is the flagship industry-led training facility for HVAC&R apprentices nationally. UEE32220 Certificate III in Refrigeration and Air Conditioning is the dominant qualification. Apprentices train on refrigerant recovery, leak test, brazing, welding, system commissioning and increasingly the new generation refrigerants — R32 (mainstream split AC), R454B (commercial AC transitioning from R410A), R744 (CO2 — commercial refrigeration), R1234yf (mobile AC), R290 (propane — natural refrigerant gaining traction). F-gas regulation under the Ozone Protection and Synthetic Greenhouse Gas Management Act drives apprentice licence training. The CFC and HFC phase-down schedules add to the training context.

Design conditions. Class 8 industrial mixed with Class 5 office for the theory rooms. 20 to 26°C, 40 to 60 percent RH, NC-40 to NC-45 acoustic, 4 to 6 ACH ambient general, MERV 13 supply.

Refrigerant exposure and leak management. Refrigerant exposure during apprentice training is controlled through containment (no intentional release), refrigerant recovery equipment per AS/NZS 1677, and ambient leak detection. R32 carries flammability hazard (A2L low flammability) — apprentice training on R32 systems includes leak detection and ignition source control. R744 (CO2) at 5,000 ppm Workplace Exposure Standard TWA carries asphyxiation hazard at the higher concentrations possible in a leak. R290 (propane) carries full flammability hazard (A3) — apprentice training restricted to small charge systems with AS/NZS 60079 controls.

Brazing fume and welding fume. Apprentice copper brazing on refrigerant lines uses silver-bearing brazing rods — silver fume (Ag Workplace Exposure Standard 0.01 mg/m³ TWA) and cadmium fume from legacy brazing rods (Cd 0.01 mg/m³ TWA — IARC Group 1 carcinogen, modern brazing rods are cadmium-free). Local extract at the brazing position with downdraft table or swivel-arm extraction at 0.5 m/s capture velocity. Refrigeration apprentices also train on TIG welding of stainless refrigerant piping — the welding bay treatment applies.

System commissioning bench. Apprentice commissioning of split AC, VRV, chiller and refrigeration systems runs in dedicated bays with system mounting points, refrigerant charging stations and instrument calibration. The bay ventilation is conventional workshop at 4 to 6 ACH plus local extract at the brazing and welding positions.

Electrical trade apprentice training

UEE Electrotechnology training package delivers electrical apprentice training across UEE30820 Certificate III in Electrotechnology Electrician and related qualifications. NECA — the National Electrical Contractors Association — operates the NECA Skills Training Centre at Sydney, Melbourne, Brisbane, Adelaide and Perth as the industry-led training facility for electrical apprentices. TAFE NSW (Ultimo, Western Sydney, Hunter), Holmesglen, Box Hill, Kangan, Chisholm and most regional TAFEs also run substantial electrical apprentice programs.

Design conditions. Class 8 industrial. The electrical apprentice bay is relatively clean compared to other trades — no significant fume or dust generation, predominantly wiring, switchboard assembly, test and lock-out/tag-out. 22 to 24°C, 40 to 60 percent RH, NC-40 to NC-45 acoustic, 4 to 6 ACH ambient general, MERV 13 supply. The HVAC requirements are minimal beyond standard workshop conditions.

Battery service and ESD. Apprentice work on battery systems (UPS, off-grid solar, EV) requires the same battery and electrolyte handling as automotive — sulphuric acid for lead-acid, fluoride and lithium fume for lithium fault conditions. ESD-controlled environment for sensitive electronic work where the apprentice handles printed circuit boards.

Plumbing and gasfitting apprentice training

UEP Plumbing training package delivers UEP30620 Certificate III in Plumbing and related qualifications. MEGT operates the MEGT Plumbing Training Centre as the industry-led training facility. TAFE NSW, Holmesglen, Box Hill, Kangan, Chisholm, TAFE Queensland, TAFE SA, South Metropolitan TAFE WA and TasTAFE all run substantial plumbing apprentice programs. The Master Plumbers Mechanical Services Association Australia (MPMSAA) sets industry positions on plumbing trade training.

Design conditions. Class 8 industrial. 20 to 26°C, 40 to 60 percent RH, NC-40 to NC-45 acoustic, 4 to 6 ACH ambient general, MERV 13 supply.

Gas testing and leak detection. Apprentice gas fitting (UEP30220 Certificate III in Gas Fitting) involves natural gas (CH4) and LPG (propane and butane) system installation, test and commissioning. The training rig includes pressure test, leak detection at 1.25 percent LEL CH4 (25 percent of LEL is the alarm threshold per AS 5601), gas appliance commissioning. The gas cylinder reception zone is classified Zone 1 per AS/NZS 60079 around the cylinder valve, Zone 2 in the broader storage area. Continuous extraction at 0.5 m/s capture velocity.

Drainage and sanitary plumbing training. Apprentice drainage training operates on a test rig with simulated sanitary fixtures — the exposure is biological (sewage simulant) plus chemical (cleaner). Standard washroom-level ventilation with handwashing facilities.

Roofing apprentice training. Roofing plumber apprentice (UEP30420 Certificate III in Roof Plumbing) operates on a mock roof rig — outdoor exposure plus weld fume from sheet metal joining work. The weld fume treatment from the welding section applies.

Construction and building apprentice training

CPC Construction training package — CPC30220 Certificate III in Carpentry, CPC30320 Certificate III in Solid Plastering, CPC30420 Certificate III in Demolition, CPC30620 Certificate III in Painting and Decorating, CPC30220 Certificate III in Bricklaying and Blocklaying, CPC30121 Certificate III in Construction Waterproofing — delivers the building apprentice training stream. The training operates in mock-up bays plus outdoor covered areas with significant nuisance dust from concrete, steel, masonry, timber, drywall and plaster handling. General workshop conditions plus AS 3957 dust hazard guidance and AS/NZS 1715 respiratory protection. Outdoor and covered areas are essentially weather-protected with natural ventilation; indoor bays receive standard Class 8 industrial ventilation.

Science laboratory, chemistry, biology and pathology training

TAFE laboratory technician training (MSL Laboratory Skills training package — MSL30122 Certificate III in Laboratory Skills and MSL40122 Certificate IV in Laboratory Techniques) operates in working laboratory bays with chemistry bench, microscope station, balance, autoclave and fume cupboard. Training also delivers to high-school finishing students bridging to university science.

Design conditions. NCC Class 9b or Class 8 depending on configuration. 22 to 24°C, 40 to 50 percent RH, 8 to 10 ACH with 100 percent outside air (no recirculation in chemistry teaching labs), NC-40 acoustic (fume cupboard fan noise governs), MERV 13 supply.

Fume cupboard at 0.5 m/s face velocity. AS/NZS 2243.8 governs. 0.5 m/s ± 0.1 m/s at the design sash height. Continuous face velocity monitor at each cupboard with audible and visual alarm at 0.4 m/s low. Variable-air-volume cupboards modulate exhaust to hold face velocity constant as the sash moves. Dedicated 304 stainless steel exhaust from the cupboard outlet to roof discharge, no recirculation, no AHU return path, no plenum sharing with comfort ductwork.

Local exhaust, wash-down and autoclave. Local extract over autoclave (15 to 25 L/s direct to outside), microscope station with local extract for staining solvents, wash-down station with chemical-resistant drainage.

Pathology and biology bench. Where the training program includes pathology assistant (HLT37215 Certificate III in Pathology Collection) or biological work, AS/NZS 2243.3 microbiological containment governs. PC1 containment for routine work, PC2 for genetic engineering practicals with E. coli K-12 strain, BSC Class II Type A2 for PC2.

Dental assistant, nursing, doctor assistant, radiography, vet tech and pharmacy training

HLT Health training package delivers clinical assistant training across HLT35021 Certificate III in Dental Assisting, HLT33121 Certificate III in Health Services Assistance, HLT37215 Certificate III in Pathology Collection, HLT37315 Certificate IV in Veterinary Nursing and related qualifications. Training operates in simulation labs that closely replicate clinical environments — anatomy bench, pathology lab, phlebotomy practice room, dental chair simulation, surgical preparation room.

Design conditions. NCC Class 9a where treatment beds present, Class 9b otherwise. 22 to 24°C, 40 to 60 percent RH, NC-30 acoustic in patient simulation rooms, NC-35 in teaching labs, 10 to 12 L/s/person outdoor air per AS 1668.2 (elevated for clinical training context), MERV 13 supply minimum, HEPA H13 for any isolation room simulation.

ASHRAE 170 healthcare standard cross-reference. Where the training facility simulates clinical environments, ASHRAE Standard 170 (Ventilation of Health Care Facilities) is the international cross-reference for room pressure relationships, air change rates and filtration. The dental chair simulation runs at clinical air change rates (6 ACH outside air, 12 ACH total).

HEPA filtration and cleanroom simulation. Pathology training labs and any operating theatre simulation run HEPA H13 supply with the cleanroom protocols of AS 1668.2 Cleanroom appendix and ISO 14644.

Anatomy and pathology bench. Apprentice training on cadaver tissue (rare — typically reserved for paramedic and senior nursing programs) requires formaldehyde local extract over each dissection bench at 0.5 m/s capture velocity. Workplace Exposure Standard for formaldehyde 1 ppm STEL governs.

Film, music, recording studio and theatre training

Creative arts training (CUA Creative Arts and Culture training package, plus SAE Creative Media at the private RTO sector and Box Hill, RMIT TAFE and JMC Academy) delivers film, music production, audio engineering and theatre technical training. Acoustic critical environment.

Design conditions. 22 to 24°C, 40 to 60 percent RH, NC-25 to NC-30 absolute quiet (recording studio NC-25, theatre NC-30, classroom NC-35), 8 to 10 L/s/person outdoor air, MERV 13 supply, ESD-controlled environment for electronic equipment handling.

Acoustic isolation. Recording studio and music production rooms require full acoustic isolation — large duct sizes (face velocity below 4 m/s in supply, below 3 m/s in return), substantial attenuation (typically two attenuators in series on each supply branch with 35 dB combined insertion loss), thick acoustic lining over long duct runs, vibration isolation on the AHU, dedicated AHU located in remote plant room.

Climate stability. Audio equipment and instruments are humidity-sensitive — humidity drift causes acoustic property changes in wooden instruments and panel materials. Tight humidity control (50 percent RH ± 5 percent) protects the instruments and the recording environment.

Acoustic targets across the TAFE campus — AS 2107 specification

AS/NZS 2107:2016 is the controlling acoustic standard. The recommended internal noise levels by zone: administration and reception NC-35; private office and careers counsellor NC-30 (confidential conversation); general classroom and lecture room NC-30 to NC-35 (speech intelligibility); library reading room NC-30; theatre and music room NC-25 to NC-30; recording studio NC-25; multipurpose hall NC-35 to NC-40; student common and cafe NC-35 to NC-40 (conversation buzz acceptable); science laboratory NC-40 (fume cupboard fan noise governs); design and technology workshop NC-45 to NC-50 (machinery noise governs); automotive and welding apprentice workshop NC-45 to NC-50; sensory and special education classroom NC-25 (autism spectrum apprentice support); apprentice training counsellor and wellbeing room NC-30. Hitting these targets reliably depends on duct sizing discipline, attenuator selection and acoustic lining as covered in the acoustic HVAC duct lining and attenuator guide.

Accessibility and DDA — AS 1428.1 student access

The Disability (Access to Premises — Buildings) Standards 2010 apply to all new and significantly upgraded Australian TAFE buildings. AS 1428.1 covers physical access; AS/NZS 1428.4 covers wayfinding for vision-impaired users. The HVAC ductwork implications: diffuser and grille height and thermostat sensor placement must respect AS 1428.1 accessibility reach ranges (700 to 1,200 mm above floor for controls accessible to wheelchair-using students); lift machine room ventilation must support continuous lift operation since heat-related shut-downs block accessible movement between floors of multi-storey TAFE buildings; AS/NZS 1428.4 wayfinding for vision-impaired users requires auditory signalling not masked by AHU noise; and TAFE campuses with significant autism spectrum or sensory processing student populations specify lower acoustic targets (NC-25), low air velocity at occupant level (below 0.15 m/s) and perforated face diffusers rather than linear slots for lower regenerated noise.

SBKJ machine configuration for TAFE workshop fabrication

For Australian TAFE and RTO project work, SBKJ engineers recommend the following standard machine configuration for the mechanical contractor or ducting fabricator delivering the work:

  • SBAL-V galvanised auto duct line — the workhorse. The SBAL-V handles galvanised steel from 0.5 to 1.5 mm thickness in the SBAL-V-1250J (1,250 mm coil width) or SBAL-V-1500J (1,500 mm coil width) configurations, running at 16 m/min. The U-shape automatic duct production line covers TDF, angle flange and drive cleat seam types. This is the right machine for the general TAFE envelope — administration, classrooms, lecture theatres, library, student common, staff rooms, theory rooms, IT pods, conference and event halls, and the supply side of all workshops. Z275 galvanising minimum for coastal TAFE campuses (Sydney TAFE, TAFE Queensland Gold Coast and Sunshine Coast, South Metropolitan TAFE WA, Charles Darwin University Casuarina). 380V 3-phase 50Hz power, ISO 9001:2015 and CE certified. See the SBAL-V product page for full technical data.
  • SBAL-V at stainless configuration for high-grade extract. 1.5 mm 316L stainless steel for fume cupboard plenum (AS/NZS 2243.8 lab apprentice), commercial kitchen exhaust at culinary schools (William Angliss, Holmesglen, TAFE NSW), automotive paint booth and isocyanate spray exhaust, and hairdressing salon chair extraction. 316L is the preferred grade where chloride exposure (kitchen sanitiser, salon chemistry) attacks 304.
  • SBAL-III — entry-level alternative. Where the fabricator package targets a smaller TAFE project pipeline or a single-site RTO, the SBAL-III is the entry-level alternative at lower capital cost but lower throughput than SBAL-V. See SBAL-V vs SBAL-III for the specification comparison.
  • SBSF-1525 stainless duct forming machine. Stainless steel 304 forming for chemistry lab fume hood plenum, automotive tailpipe extraction stainless, hairdressing salon chair extraction stainless, and the commercial kitchen exhaust envelope. The SBSF-1525 handles 1525 mm coil width stainless. Welded TIG seams for grease and corrosion integrity.
  • SB-ZF1500 automatic stitchwelder. For welded longitudinal stitch welding of duct components up to 1500 mm in length, handling material thickness from 0.8 to 3 mm with diameters from 150 to 1500 mm. Ideal for stainless fume hood plenum, kitchen exhaust welded seams, paint booth welded construction, and any application requiring grease-integrity or chemical-resistant welded seam. Pairs with the SBSF-1525 in a typical TAFE-focused fabricator package.
  • SBSF-1525 stitchwelder — alternative configuration. The SBSF-1525 in stitchwelder configuration handles smaller batch grease-integrity welded seams. Both SBSF-1525 and SB-ZF1500 are used across the TAFE culinary and chemistry extract envelope depending on production volume.
  • SBFB-1500 spiral tubeformer for dust extraction. Spiral round duct is the preferred solution for carpentry wood dust extraction trunk (18 to 20 m/s dust transport velocity), CNC swarf collection at precision engineering apprentice workshops, stonemason booth extract trunking and any high-velocity dust collection path. The SBFB-1500 produces spiral round up to 1500 mm diameter. The SBTF-1500, SBTF-1602 and SBTF-2020 cover the larger spiral round diameter range up to 2,000 mm for the main dust collection trunks.
  • SBPC1500 plasma cutter for fitting fabrication. Fittings (elbows, branches, transitions) for the TAFE project run through the plasma cutter for accurate cuts to AS 4254.2 tolerances. Where the project pipeline supports it, a CNC plasma cutter linked to BIM models reduces fitting fabrication time significantly.
  • SBLR-600 elbow welder. Stainless segmented elbows for chemistry exhaust, kitchen exhaust, paint booth exhaust and any other welded-seam application. The SBLR-600 handles 600 mm elbow segments with consistent weld penetration.
  • SBSF-1525 fire-rated heavy gauge. For fire-rated kitchen exhaust riser construction (NFPA 96 / AS 1668.2 Section 5), 250°C/2hr survival temperature insulation, heavier gauge stainless on welded longitudinal seams. The SBSF-1525 handles the heavy gauge requirement.
  • Spark-resistant construction for hazardous area duct. Where the TAFE workshop hosts hazardous area classified zones — apprentice welding gas cylinder reception (Zone 1), LPG forklift cylinder reception (Zone 2), paint booth (Zone 1 inside, Zone 2 surrounds), carpentry dust collector (Zone 22 dust hazard), bakery flour dust handling — the ductwork construction includes conductive fasteners, grounded duct components, and spark-resistant fan construction per AS/NZS 60079 and NFPA 660 (2025).

A typical TAFE-focused fabricator package occupies approximately 40 to 60 m of factory floor and supports two to four TAFE projects per quarter at single-shift operation, scaling to six to eight projects per quarter at two-shift operation. For mechanical contractors with sustained TAFE sector work — the panel contractors for TAFE NSW, Schools Infrastructure NSW (covers some adult-education programs), the Victorian School Building Authority (covers TAFE capital works), Catholic Education Office (covers Catholic-affiliated training colleges), and the major TAFE institute capital works programs — the capital payback against outsourced ductwork is typically 18 to 30 months.

Public TAFE operators — state TAFE institutes

The Australian public TAFE sector is operated by state-level institutes (Victoria reformed institutes 2014; other states maintain consolidated state TAFE structures). The largest operators (approximate 2026 enrolment counts):

  • TAFE NSW — Australia's biggest VET provider with 130+ campuses and 500,000+ students enrolled annually. Operating regions include Sydney TAFE (Ultimo, Padstow, Petersham, Randwick, Meadowbank, Ryde, St Leonards), Western Sydney (Blacktown, Mt Druitt, Nirimba, Castle Hill), Hunter (Newcastle, Glendale, Wyong, Hamilton), Riverina (Wagga Wagga, Albury, Tumut, Cootamundra), Illawarra (Wollongong, Yallah, Shellharbour, Nowra), North Coast (Coffs Harbour, Lismore, Grafton, Port Macquarie, Tweed Heads, Kingscliff), New England (Tamworth, Armidale, Inverell, Moree). State government public.
  • TAFE Queensland — 60+ campuses across Brisbane (South Bank, Acacia Ridge, Loganlea, Mt Gravatt, Caboolture), Gold Coast (Coomera, Ashmore), Sunshine Coast (Nambour, Mooloolaba, Maroochydore), Toowoomba (Toowoomba Wide Bay), Mt Isa, Cairns, Townsville (Pimlico, Bohle), Mackay.
  • TAFE SA — Adelaide (Adelaide City, Tonsley, Elizabeth, Salisbury, Noarlunga), regional (Mount Gambier, Port Lincoln, Whyalla, Port Augusta, Berri).
  • South Metropolitan TAFE WA — Fremantle, Murdoch, Rockingham, Mandurah, Kwinana, Munster. North Metropolitan TAFE WA — Perth City, Joondalup, Leederville, Balga, Mt Lawley, Midland.
  • TasTAFE Tasmania — Hobart (Hobart Campbell Street, Glenorchy, Drysdale, Clarence), Launceston (Launceston, Alanvale, North), regional Burnie/Devonport.
  • CIT — Canberra Institute of Technology — Reid, Bruce, Fyshwick, Tuggeranong, Woden. ACT.
  • Charles Darwin University CDU — Casuarina (main Darwin campus), Palmerston, Alice Springs, Katherine, Nhulunbuy. Dual sector — university plus TAFE — NT.

Each public TAFE operates under state government funding plus Commonwealth contribution through the National Skills Agreement. The mechanical specification positions typically follow the parent state Department of Education or the equivalent state asset management framework — adapted for the more diverse Class 8 industrial environment that TAFE delivers compared to the K-12 Class 9b focus.

Victorian TAFE institutes — post-2014 institute reform

Victoria reformed its TAFE structure in 2014 into a network of regional and metropolitan institutes:

  • Holmesglen Institute — Chadstone (flagship), Moorabbin, Glen Waverley. Biggest by enrolment in Melbourne and arguably the biggest single-campus TAFE in Australia (Chadstone). Broad trade and professional offering.
  • Box Hill Institute — Box Hill (Whitehorse), Lilydale. Eastern Melbourne. Co-located with AIRAH Box Hill HVAC&R training centre — the flagship industry-led training facility for HVAC&R apprentices nationally.
  • Kangan Institute — Broadmeadows (main), Docklands. Northern Melbourne, with substantial automotive apprentice infrastructure.
  • Bendigo Kangan Institute — Bendigo, Castlemaine. Regional north-central Victoria.
  • Chisholm Institute — Frankston (flagship), Dandenong, Cranbourne, Mornington. Southern Melbourne and Mornington Peninsula.
  • William Angliss Institute — La Trobe Street Melbourne CBD. Hospitality and culinary specialist — the largest single-site provider of culinary apprentice training nationally.
  • GOTAFE — Goulburn Ovens. Shepparton (main), Wangaratta, Benalla. Regional north-east Victoria.
  • Federation TAFE — Ballarat (main), Berwick, Mt Helen, Wendouree, Horsham. Formerly University of Ballarat, now Federation University with TAFE arm. Regional and outer-Melbourne western corridor.
  • South West Institute of TAFE — Warrnambool. Coastal western Victoria.
  • Sunraysia Institute of TAFE — Mildura, Swan Hill. Far north-west Victoria.

Each Victorian institute runs its own capital works program funded through the Victorian Skills Authority and the Department of Jobs, Skills, Industry and Regions. The mechanical specification positions broadly follow the Victorian School Building Authority (VSBA) template adapted for the Class 8 industrial trade workshop environment.

Industry-led trade training centres

Several industry associations run training centres outside the state TAFE structure, delivering specialised trade training to the same AQF qualification standard:

  • AIRAH Box Hill HVAC&R training centre — flagship industry-led training facility for refrigeration and air conditioning apprentices. UEE32220 Certificate III in Refrigeration and Air Conditioning and related qualifications. Co-located with the Box Hill Institute. AIRAH — the Australian Institute of Refrigeration, Air Conditioning and Heating — is the parent industry body. SBKJ Group's Box Hill North VIC office is within 10 km of the centre.
  • NECA Skills Training Centre — National Electrical Contractors Association. Sydney (Chullora), Melbourne (Tullamarine, Carrum Downs), Brisbane (Murarrie), Adelaide (Wayville), Perth (Joondalup). Electrical apprentice training at industry standard.
  • MEGT Plumbing Training Centre — MEGT Australian Apprenticeships. Plumbing apprentice training across multiple state locations.
  • ACWE — Australian College of Welding Engineers — Wagga Wagga. Specialised welding apprentice and post-trade training to AS 1554 and ASME IX standards.
  • NESA — National Employment Services Association — apprentice and traineeship support services across the national network.

These industry-led centres typically operate to the same AQF training package specifications as TAFE but with closer alignment to industry-specific tooling and equipment. The HVAC engineering brief mirrors the TAFE workshop pattern with intensified focus on the trade-specific exposure (refrigerant for AIRAH, weld fume for ACWE, electrical specifically for NECA).

Private RTOs and group training organisations

The private RTO sector and group training organisation sector deliver apprentice and trainee programs across the same training packages as public TAFE with different funding and governance:

  • Box Hill Institute (private arm) and Holmesglen (private arm) — both public TAFE institutes operate private arms delivering full fee paying and international student programs.
  • Career Employment Group CEG — group training organisation supporting apprentice placements.
  • Australian Trade College Tasmania — Tasmanian-based trade college delivering apprentice training.
  • Australian Industry Group AIG Group Training — peak employer body, runs Group Training Australia network.
  • MEGT Australian Apprenticeships — Australian Apprenticeship Support Network provider.
  • IntoWork — group training organisation across multiple states.
  • Apprenticeship Support Australia ASA — apprenticeship support network provider.
  • VERTO — NSW-based apprenticeship support organisation.
  • IBSA Manufacturing — Industry Skills Australia for manufacturing skills.
  • AusIndustry — Commonwealth industry program support.

Private RTOs operate under the same ASQA registration framework as public TAFE — the Standards for Registered Training Organisations 2015 apply equally. The mechanical specification follows the same pattern, with the facility provider responsible for delivering the workshop environment fit for the training package being delivered.

Industry-led training and industry bodies

Several industry bodies shape the trade training context and the corresponding HVAC specification:

  • HRIA — Hire and Rental Industry Association — covers equipment hire trade training.
  • MTAA — Motor Trades Association Australia — covers automotive apprentice training.
  • NECA — National Electrical Contractors Association — covers electrical apprentice training (also runs Skills Training Centre network as noted above).
  • AIRAH — Australian Institute of Refrigeration, Air Conditioning and Heating — covers HVAC&R apprentice training (also runs Box Hill training centre).
  • MPMSAA — Master Plumbers Mechanical Services Association Australia — covers plumbing and mechanical services apprentice training.
  • MIA — Meat Industry Australia — covers butcher apprentice training.
  • ASI — Australian Steel Institute — covers steel fabrication and structural welding apprentice training.
  • TAFE Directors Australia TDA — peak body for TAFE institutes nationally.
  • AISC — Australian Industry Skills Committee — peak skills planning body.
  • AIG — Australian Industry Group — peak employer industry body.
  • ACPET / ITECA — Independent Tertiary Education Council Australia — peak body for independent tertiary education and RTOs.
  • Skills IQ / Skills for Australia — skills service organisations.

EPC firms, consulting engineers and project delivery

The Australian TAFE and RTO capital works market is served by EPC firms and consulting engineers with sustained sector expertise — AECOM Australia, Aurecon, Norman Disney & Young (NDY), WSP Australia, Arup, Wood & Grieve (now Stantec), Slattery Australia (cost management), and on the delivery side the major Tier 1 builders — Lendlease, Built, Multiplex, Probuild, Hutchinson Builders, Watpac, John Holland, ICON — plus regional specialists for state-by-state delivery. The Victorian School Building Authority covers Victorian TAFE capital works. Schools Infrastructure NSW covers some TAFE NSW work depending on the project structure. Queensland Building and Asset Services covers TAFE Queensland. Each state Department or asset agency publishes a standard mechanical specification that the project consultant adapts for the specific TAFE site brief.

Modular and relocatable workshop delivery — increasingly common for capacity-expansion and remote campus replacements — is delivered by Anchor Buildings (Pinkenba QLD), Modular Building Solutions, Hutchinson Modular, McGrath Built Smart, Easy Move Cabins and Ausco Modular. Modular workshops ship with prefabricated HVAC and require factory-tested duct connections, well suited to a fabricator running an SBKJ duct line in standardised module sizes.

Safe Work Australia Workplace Exposure Standards — the complete TAFE table

The Safe Work Australia Workplace Exposure Standards (WES) that drive the TAFE workshop HVAC are dense. A summary table for the consulting engineer's reference:

  • Respirable crystalline silica RCS 0.05 mg/m³ TWA — stonemasonry, tiling, brickwork, concrete cutting, autobody pre-paint sanding.
  • Respirable wood dust 5 mg/m³ TWA, inhalable wood dust 10 mg/m³ TWA — carpentry, joinery, cabinet making. IARC Group 1 carcinogen for hardwood dust.
  • Mn manganese 0.2 mg/m³ TWA inhalable — welding apprentice (controlling species at most mild steel welding operations).
  • Fe2O3 iron oxide fume 5 mg/m³ TWA — steel welding, grinding, forging.
  • Cr VI hexavalent chromium 0.05 mg/m³ STEL — stainless steel welding, grinding. IARC Group 1 carcinogen.
  • Ni nickel inhalable 1 mg/m³, insoluble 0.1 mg/m³ — stainless steel welding.
  • Pb lead 0.05 mg/m³ TWA — brass plumbing, leaded solder (rare), legacy paint stripping.
  • CO carbon monoxide 30 ppm STEL — automotive workshop, heavy vehicle workshop, LPG forklift cylinder reception, forge furnace, combustion engine apprentice exposure.
  • CO2 carbon dioxide 5,000 ppm TWA — classroom IAQ target below 1,000 ppm, lecture theatre target below 1,000 ppm, R744 refrigerant exposure.
  • Refrigerants R32, R454B, R744, R1234yf, R290 — HVAC&R apprentice training.
  • Formaldehyde 1 ppm STEL — MDF and chipboard cutting in carpentry, anatomy lab dissection, hair smoothing treatments.
  • VOC general — paint, solvent, adhesive — apprentice paint booth and spray painting.
  • MEK methyl ethyl ketone 200 ppm TWA, IPA isopropyl alcohol 400 ppm, ethyl acetate 200 ppm, toluene 50 ppm STEL (legacy solvent paint and adhesive being phased), MIBK methyl isobutyl ketone 50 ppm, acetone 250 ppm — paint, solvent and nail tech apprentice exposure.
  • Ozone 0.1 ppm STEL — UV-cure, laser printer rooms, TIG welding.
  • HCN hydrogen cyanide 5 ppm STEL — case-hardening heat treat (rare apprentice exposure).
  • NH3 ammonia 25 ppm TWA — cleaning, laundry, commercial kitchen, hair dye.
  • Cl2 chlorine 0.5 ppm TWA — pool training, laundry.
  • CH4 methane 1.25 percent LEL — LPG cylinder, gas welding, catering, vehicle workshop. Gas detection alarm at 25 percent of LEL.
  • Oil mist 5 mg/m³ TWA — mechanic, lathe, cutting fluid.
  • Inhalable nuisance dust 10 mg/m³ TWA — general construction, plaster, building trades.
  • Hydrogen peroxide H2O2 1 ppm TWA — hairdressing bleach.
  • Persulfate (sodium, potassium, ammonium) — hairdressing bleach. Sensitiser, occupational asthma hazard.

Each species has an engineering control hierarchy under AS/NZS 1715. Engineering controls first — substitute hazard where possible, local exhaust at the point of generation, general dilution ventilation backing up the local extraction, then RPE as the last line. The HVAC specification implements the engineering controls.

ASQA compliance and the apprentice training environment

ASQA — the Australian Skills Quality Authority — audits RTOs against the Standards for Registered Training Organisations 2015 and the VET Quality Framework. The HVAC specification touches ASQA compliance because the training facility must be fit for purpose to deliver the AQF training package. A CPC30220 Certificate III in Carpentry must be delivered in a workshop with adequate ventilation, dust extraction, lighting and safety controls, otherwise the RTO can lose accreditation for that qualification. A UEE32220 Certificate III in Refrigeration and Air Conditioning must be delivered with refrigerant recovery infrastructure and adequate ventilation for brazing fume. A SHB30121 Certificate III in Hairdressing must be delivered with chair extraction at chemical service positions.

ASQA does not specify HVAC directly — that comes from AS 1668.2 and Safe Work Australia. But ASQA verifies the training facility meets the regulatory environment of the trade. The HVAC consultant must understand which training packages the campus delivers and design to support practical delivery of each qualification. The training package matrix — UEE Electrotechnology, UEP Plumbing, AUR Automotive, MEM Manufacturing Engineering, MSF Furnishing, CPC Construction, SIT Tourism, SHB Hairdressing, MSL Laboratory, HLT Health, ICT Information Communication Technology, BSB Business, CHC Community Services, SIS Sport Recreation, FNS Financial Services, ICP Printing, RII Resources Industry, AHC Agriculture, TLI Transport Logistics — frames the design brief.

NABERS Energy and sustainability benchmarking

Australian TAFE institutes are increasingly pursuing NABERS Energy ratings on whole-campus energy intensity. The NABERS for Schools tool covers some TAFE applications; broader NABERS Energy for Offices applies to administration buildings. Higher star ratings push designers toward variable air volume, demand-controlled ventilation, full economiser cycle, low static pressure design (target external static under 250 Pa), and tight-leakage TDF flange duct (Class A to AS 4254.2). A 5-star or 5.5-star NABERS Energy rating is the contemporary target for new public TAFE builds in NSW, Victoria, the ACT and Queensland. Some TAFE institutes are pursuing Climate Active carbon neutral certification — the HVAC contribution is energy efficiency (NABERS rating), embedded carbon in the ductwork (galvanised steel has lower embedded carbon than aluminium) and natural refrigerant in air conditioning (R32 phase-in, R290 in commercial applications, R744 in refrigeration).

Commissioning and the TAFE facility manager's evidence pack

Commissioning is not complete when the AHU runs and the rooms hold setpoint. The handover deliverable is an evidence pack that survives ASQA audit, Safe Work Australia inspection, and the annual essential safety measures inspection: design intent statement; calculated and measured airflow schedules zone-by-zone with AS 1668.2 reference; AHU performance test record (coil, fan curves, motor draw, filter pressure drop, economiser verification); direct outdoor air measurement at each AHU intake (calculated values from damper position are no longer accepted by most state Departments); pressure relationship record (verified negative in chemistry labs, isolation rooms, kitchens, stonemason booths, paint booths, hazardous area zones); acoustic measurement report against AS 2107 targets; AS/NZS 2243.8 fume cupboard face velocity verification with hot-wire anemometer at multiple sash positions; LEV capture velocity verification at each apprentice extraction point with hot-wire anemometer; AS 1885 weld fume verification under representative apprentice training conditions; AS/NZS 1715 RPE selection record matched to monitored exposure; AS/NZS 60079 hazardous area drawing and intrinsically safe certification; NFPA 660 (2025) dust deflagration assessment for collector and trunk; fire and smoke damper installation and AS 1851 drop-test certificates; CO2, CO and gas sensor calibration records; filter change-out schedule for MERV 13 (annual) and HEPA H13 (twice-yearly) replacement; maintenance manual for the TAFE facility manager; BMS training certificate; pre-occupancy purge log; and a 12-month measured NABERS Energy baseline after first full year of operation.

Ongoing operational verification

Ongoing verification is part of the service model — quarterly AHU service (coil clean, filter inspection, belt and coupling inspection, control valve stroke test, drain pan clean); annual ductwork inspection (internal condition, joint integrity, acoustic lining condition, damper position); annual filter replacement (MERV 13 annual, HEPA H13 twice yearly, pressure-drop logging as objective trigger); annual AS 1851 fire damper drop test; annual AS/NZS 2243.8 fume cupboard face velocity test with hot-wire anemometer at the design sash height; annual LEV capture velocity verification at each apprentice extraction point; annual CO, CO2 and gas sensor calibration against reference; annual weld fume exposure monitoring under representative apprentice training conditions per AS 1885; annual silica exposure monitoring at stonemasonry apprentice bays with sample records held 40 years; annual wood dust exposure monitoring at carpentry bays with sample records held 30 years; biennial duct cleaning with NADCA-style protocols and before-and-after documentation; continuous BMS monitoring of CO2, CO, gas, temperature, humidity, AHU status, filter pressure drop and damper position; and a pre-term purge schedule documented before each TAFE training intake.

Where this fits in the broader SBKJ insights library

This guide is part of the SBKJ insights library covering Australian institutional and industrial HVAC sectors. Closely related guides: the broader education, school and university HVAC duct guide covering the full educational pipeline; the K-12 K-12 schools — public, Catholic and independent — guide for the school-age cohort; the tertiary university and TAFE workshop and engineering lab guide for university research labs and senior workshops; the childcare, kindergarten and OSHC guide for the under-5 cohort; the library, museum and archive guide for archive collection management; the cinema, theatre and entertainment guide for performing arts training; the sports and fitness centre guide for gymnasium and sports training; the commercial kitchen exhaust guide for the culinary apprentice kitchen; the automotive paint booth guide for the autobody apprentice training; the hospital and healthcare guide for clinical training simulation; the welding methods HVAC duct fabrication guide for the welding bay; the acoustic HVAC duct lining and attenuator guide; the SBAL-V vs SBAL-III machine comparison; the SBKJ machine catalogue; and the SBAL-V product page.

How SBKJ supports TAFE, RTO and apprentice workshop projects

SBKJ Group's Australian operation is headquartered in Box Hill North, Victoria — within 10 km of AIRAH's Box Hill HVAC&R training centre, within 15 km of Box Hill Institute and within 25 km of Holmesglen Chadstone. Mechanical contractors fitting out TAFE, RTO and apprentice workshop projects across Australia work with us on three workstreams:

  • Duct line specification and supply. SBAL-V galvanised standard configuration with the options described above — Z275 galvanising for coastal TAFE campuses, TDF flanges, acoustic lining capability, MERV 13-appropriate face velocities, plus the stainless 304 and 316L spiral round equipment for the science, kitchen, paint booth and hairdressing salon exhaust envelopes. Spiral round equipment up to 2,000 mm diameter for the carpentry wood dust and CNC swarf collection trunks.
  • Engineering review. Review of the consultant's mechanical specification against AS 1668.2, AS 4254, AS 2107, AS 2243, AS/NZS 1715, AS 1885, AS/NZS 60079, AS 3957, NFPA 660 (2025), NFPA 96, the NCC, the state TAFE technical specification and the AQF training package matrix being delivered on site. Free for shortlisted projects.
  • Commissioning support. Pre-handover review of the commissioning evidence pack, with sample reports from comparable TAFE and RTO projects for benchmarking. ASQA-audit-ready evidence pack templates available on request.

Talk to an SBKJ engineer about your TAFE, RTO or apprentice workshop project →

Meet SBKJ at ARBS 2026 — Sydney, May 2026

SBKJ Group will be exhibiting at ARBS 2026 — the Air Conditioning, Refrigeration and Building Services trade exhibition — in Sydney, May 2026. The ARBS show is the largest HVAC&R industry event in the southern hemisphere and a focal point for the Australian apprentice training community, AIRAH professional development, NECA electrical contractors and the broader HVAC&R supply chain. Visit the SBKJ stand for live demonstrations of the SBAL-V galvanised auto duct line, the SBSF-1525 stainless duct forming machine, the SB-ZF1500 automatic stitchwelder, and the SBFB-1500 spiral tubeformer. Sample fabricated TAFE workshop duct components — galvanised supply, stainless fume cupboard plenum, stainless kitchen exhaust, spiral round dust collection — will be on display. Pre-book a meeting with the SBKJ engineering team via the contact details below.

FAQ

What are the Safe Work Australia exposure standards for an apprentice welding bay at a TAFE workshop?

The controlling SWA Workplace Exposure Standards for a TAFE welding apprentice bay are Mn 0.2 mg/m³ TWA inhalable, Fe2O3 5 mg/m³ TWA, Cr VI 0.05 mg/m³ STEL (IARC Group 1 carcinogen), Ni inhalable 1 mg/m³ insoluble 0.1 mg/m³, Cu 0.2 mg/m³, ozone 0.1 ppm STEL, CO 30 ppm STEL, NOx 3 ppm. Engineering controls — downdraft welding table, swivel-arm fume extraction at the arc, on-torch extraction — must reduce exposure as low as reasonably practicable below the WES.

What is the WES for respirable crystalline silica and how does it apply to TAFE stonemasonry?

RCS Workplace Exposure Standard 0.05 mg/m³ TWA — halved from 0.1 mg/m³ in 2020. Apprentice exposure at stonemasonry, tiling, bricklaying and concrete cutting is the highest single silicosis risk in the entire vocational training sector. Wet methods as primary engineering control, M-class extractor at the tool, ventilated booth, P2 minimum (P3 preferred) RPE, air monitoring records held for 40 years.

What ventilation does an automotive apprentice workshop require?

Hose-on-tailpipe extraction at 250 to 400 L/s per bay (500 to 700 L/s for heavy vehicle), capture velocity 0.5 m/s. CO 30 ppm STEL with engineering control target below 10 ppm and audible alarm at 20 ppm. NOx 3 ppm TWA. Brake dust, lube oil mist (5 mg/m³), battery acid extract. General dilution ventilation 4 to 6 ACH backing up local exhaust. AS/NZS 60079 hazardous area at LPG forklift cylinder reception.

What ventilation does a TAFE carpentry, joinery and cabinet making apprentice workshop require?

Respirable wood dust 5 mg/m³ TWA, inhalable wood dust 10 mg/m³ TWA, formaldehyde 1 ppm STEL for MDF cutting. Downdraft tables at each bench, tool-tip extraction at each machine, trunk ductwork to baghouse at 2,000 to 4,000 L/s, spiral round at 18 to 20 m/s transport velocity, NFPA 660 (2025) deflagration controls, M-class dust extractor for hand tools, P2 RPE backup.

How does NFPA 96 apply to a TAFE culinary apprentice kitchen?

AS 1668.2 Section 5 is the Australian primary standard, NFPA 96 referenced as international best practice. Grease hood at 0.4 to 0.5 m/s capture velocity, welded 304 stainless with SB-ZF1500 stitchwelder seams, UL 300 fire suppression, fire-rated kitchen exhaust riser, dedicated make-up air at 80 to 90 percent of exhaust, gas detection at 1.25 percent LEL, CO 30 ppm STEL monitoring at the cooking line.

What are the AS/NZS 2243.8 fume cupboard requirements for a TAFE laboratory technician course?

0.5 m/s ± 0.1 m/s face velocity at the design sash height. Dedicated 304 stainless exhaust from cupboard to roof, no recirculation. Continuous face velocity monitor with audible and visual alarm at 0.4 m/s low. Annual face velocity verification with hot-wire anemometer for ASQA audit evidence.

What is the NCC classification of a TAFE campus?

Class 9b assembly for lecture theatres, classrooms and event spaces. Class 5 office for administration and student support. Class 8 industrial for automotive, welding, carpentry, stonemason, autobody, precision engineering, HVAC&R, electrical, plumbing and forging workshops. Class 6 commercial for culinary, retail training and hairdressing. Class 9a layered where clinical placement treatment beds exist.

What SBKJ machine line is recommended for a fabricator serving TAFE workshop projects?

SBAL-V galvanised auto duct line (1250J or 1500J, 0.5 to 1.5 mm, 16 m/min) for the general envelope. SBAL-V at stainless or SBSF-1525 stainless former for chemistry, kitchen, paint booth, salon and automotive tailpipe exhaust. SB-ZF1500 stitchwelder for grease-integrity welded seams. SBFB-1500 and SBTF-1500/1602/2020 spiral tubeformers for wood dust and CNC swarf collection. SBPC1500 plasma cutter for fittings. SBLR-600 elbow welder for stainless segmented elbows.

What is ASQA's role and how does it touch TAFE HVAC specification?

ASQA audits RTOs against the Standards for Registered Training Organisations 2015 and the VET Quality Framework. The HVAC specification supports ASQA compliance because the training facility must be fit for purpose to deliver each AQF training package. ASQA does not specify HVAC directly — that comes from AS 1668.2 and SWA — but verifies the facility meets the regulatory environment of the trade.

Who are the largest Australian TAFE and vocational training operators?

Public TAFE: TAFE NSW (130+ campuses, 500,000+ students), TAFE Queensland, TAFE SA, South Metropolitan TAFE WA, North Metropolitan TAFE WA, TasTAFE, CIT, Charles Darwin University. Victorian institutes: Holmesglen, Box Hill, Kangan, Bendigo Kangan, Chisholm, William Angliss, GOTAFE, Federation TAFE, South West, Sunraysia. Industry-led: AIRAH Box Hill HVAC&R, NECA Skills Training, MEGT Plumbing, ACWE Wagga Wagga. Private RTOs: Box Hill private, Holmesglen private, CEG, AIG Group Training, MEGT, IntoWork, VERTO, ASA.

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Box Hill North, Victoria, Australia
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