Ammonia (NH3) Industrial Refrigeration SWMS
Anhydrous ammonia industrial refrigeration plant maintenance — charge management, valve isolation, leak-detection audit, emergency response including SCBA use, engine-room ventilation and decant procedures for cold-storage and food-processing systems.
SWMS variants reference your state’s WHS legislation. Instant download after payment.
Anhydrous ammonia (NH3) industrial refrigeration plant maintenance covering charge management, valve isolation, leak-detection audit, SCBA emergency response, engine-room ventilation and decant procedures for cold-storage and food-processing systems. Triggers WHS Regulation Part 7.1 (Hazardous Chemicals), AS/NZS 5149 compliance and State Dangerous Goods notification thresholds.
Hazards identified
3 hazards covered, sorted by priority.
Pulmonary oedema, fatal asphyxiation, severe corneal damage
Loss of consciousness, asphyxiation within minutes
Hydraulic rupture, violent NH3 jet on breaking joints
Control measures
Hierarchy-of-controls order: elimination → substitution → isolation → engineering → administrative → PPE.
- 1Lockout-tagout with positive pump-down, line break permit and dual-valve isolation verified before any joint disturbance.
- 2Continuous fixed and personal NH3 detection (25/35 ppm alarms); SCBA donned above 350 ppm IDLH.
- 3Two-person entry with rescue plan, forced ventilation, gas-test record and emergency decontamination shower within 10 metres.
Applicable Codes of Practice
Manifest, placarding, risk control for Schedule 11 ammonia
Design, installation, operation and maintenance of NH3 plant
High-Risk Construction Work triggered
Anhydrous ammonia is Schedule 11 hazardous chemical; maintenance disturbs charged pressurised system.
Engine rooms and pits become confined spaces during NH3 leak or purge events.
HRCW SWMS mandatory under Reg 291; PCBU fines to $30,000.
What you receive
- ✓Editable DOCX SWMS — fully customisable to your refrigeration plant and site
- ✓State-specific WHS legislation and Dangerous Goods schedule (NSW, VIC, QLD, WA, SA, TAS, ACT, NT)
- ✓Hazard register aligned to NH3, confined space and remote response controls
- ✓Worker sign-on register for crew acknowledgement and verification of training
Related legislation
- Work Health and Safety Act 2011
- Work Health and Safety Regulations 2025 — Part 7.1 Hazardous Chemicals
- State Dangerous Goods (Storage and Handling) Regulations