Product Overview

Summary: This Chemical Exposure and Ventilation Safe Operating Procedure sets out clear, practical steps to control airborne contaminants and protect workers from harmful chemical exposure. Designed for Australian workplaces, it aligns with WHS obligations and provides a robust framework for assessing, managing, and monitoring ventilation and exposure risks in laboratories, workshops, warehouses, and production areas.

Chemical vapours, mists and dusts can build up quickly in poorly ventilated areas, creating serious health risks and potential non-compliance with Australian WHS legislation. This Chemical Exposure and Ventilation SOP provides a structured, step-by-step approach to identifying hazardous chemicals, assessing exposure pathways, and ensuring that local exhaust and general ventilation systems are correctly specified, used, and maintained. It translates technical ventilation and exposure concepts into clear instructions that frontline staff and supervisors can follow with confidence.

The procedure supports businesses in moving beyond ad‑hoc controls by embedding a consistent, documented method for planning work, operating fume cupboards and extraction systems, verifying airflow performance, and responding to alarms, spills, and suspected over-exposures. It helps organisations demonstrate due diligence by linking day-to-day ventilation practices with Safety Data Sheets (SDS), exposure standards, and the hierarchy of control. Whether you manage a small workshop or a complex facility with multiple labs and process lines, this SOP reduces ambiguity, supports training, and helps protect workers, contractors, and visitors from preventable chemical exposure incidents.

Key Benefits

• Ensure compliance with Australian WHS regulations and exposure standards for airborne contaminants.
• Reduce the risk of acute and chronic health effects from inhalation of hazardous vapours, gases, mists and dusts.
• Standardise how ventilation systems, fume cupboards and local exhausts are selected, used, inspected and maintained.
• Improve incident readiness with clear procedures for alarms, ventilation failures, spills and suspected over-exposures.
• Demonstrate due diligence to regulators, clients and insurers through a documented, repeatable control process.

Who is this for?

• WHS Managers
• Health and Safety Representatives (HSRs)
• Laboratory Managers
• Production Supervisors
• Facilities and Maintenance Managers
• Warehouse Managers
• Chemical Safety Officers
• Site Managers
• OHS Consultants
• Ventilation Engineers and HVAC Contractors

Hazards Addressed

• Inhalation of toxic or irritating chemical vapours and gases
• Exposure to airborne solvent fumes and volatile organic compounds (VOCs)
• Respiratory sensitisation from aerosols, mists and fine particulates
• Accumulation of flammable vapours leading to fire or explosion risk
• Oxygen displacement in confined or poorly ventilated spaces
• Corrosive or irritant effects to eyes, skin and respiratory tract
• Long-term occupational diseases such as occupational asthma and chemical-induced cancers
• Over-exposure due to failure or incorrect use of fume cupboards and local exhaust ventilation
• Cross-contamination between work areas via recirculated or poorly controlled airflows

Included Sections

• 1.0 Purpose and Scope
• 2.0 Definitions and Key Terms (Chemical Exposure, LEV, Fume Cupboard, Airborne Contaminant)
• 3.0 Roles and Responsibilities (PCBUs, Supervisors, Workers, Contractors, HVAC Providers)
• 4.0 Applicable Legislation, Standards and Codes of Practice
• 5.0 Hazard Identification and Chemical Inventory Review
• 6.0 Assessment of Chemical Exposure Risks and Ventilation Requirements
• 7.0 Types of Ventilation Controls (General, Local Exhaust, Fume Cupboards, Natural Ventilation)
• 8.0 Pre-Start Checks for Ventilation and Extraction Systems
• 9.0 Operating Procedures for Work Involving Volatile or Airborne Chemicals
• 10.0 Safe Use of Fume Cupboards and Local Exhaust Ventilation
• 11.0 Use of Monitoring Devices (Airflow Indicators, Gas Detectors, Alarm Systems)
• 12.0 Personal Protective Equipment in Conjunction with Ventilation Controls
• 13.0 Inspection, Testing, Maintenance and Recordkeeping for Ventilation Systems
• 14.0 Managing Ventilation Failures, Alarms and Power Outages
• 15.0 Spill Response and Emergency Procedures for Chemical Exposure
• 16.0 Health Monitoring and Reporting of Symptoms or Suspected Over-Exposure
• 17.0 Training, Competency and Induction Requirements
• 18.0 Review, Audit and Continuous Improvement of the Procedure

Legislation & References

• Work Health and Safety Act 2011 (Cth) and equivalent State and Territory WHS Acts
• Work Health and Safety Regulations 2011 (Cth), including provisions for hazardous chemicals and airborne contaminants
• Safe Work Australia – Managing Risks of Hazardous Chemicals in the Workplace: Code of Practice
• Safe Work Australia – Managing the Work Environment and Facilities: Code of Practice
• Safe Work Australia – Workplace Exposure Standards for Airborne Contaminants
• AS/NZS 1668.1: The use of ventilation and air conditioning in buildings – Fire and smoke control in buildings
• AS 1668.2: The use of ventilation and air conditioning in buildings – Mechanical ventilation in buildings
• AS/NZS 2243.8: Safety in laboratories – Fume cupboards
• AS/NZS 1715: Selection, use and maintenance of respiratory protective equipment
• AS/NZS 1716: Respiratory protective devices