This comprehensive 8-page safe work method statement (SWMS) details the potential hazards, risks, and control measures associated with working in a contaminated or flammable atmosphere.
Exposure to contaminated or flammable atmospheres poses serious dangers, including fire, explosion and toxic inhalation. To maintain compliance with workplace exposure standards and WHS legislation, all risks must be thoroughly identified, assessed, and controlled. This SWMS provides a structured framework to help eliminate or minimise these risks, ensuring the health and safety of workers and contractors.
Working in a contaminated or flammable atmosphere is classified as high-risk construction work under Australian WHS legislation. These environments can expose workers to serious dangers including toxic inhalation, fire, explosions and long-term health impacts.
This SWMS has been developed to provide a structured approach to hazard identification, risk assessment and control measures when working in hazardous atmospheres.
Contaminated atmospheres can contain harmful gases, vapours, dusts and fumes. These substances may be inhaled, absorbed through the skin, or ingested, leading to:
Flammable atmospheres may contain gases, vapours, or dusts that, when mixed with air in the right proportions, can ignite and cause catastrophic explosions. Consequences include:
Note: A safe work method statement is mandatory for all construction work that is carried out in a contaminated or flammable atmosphere.
Using a SWMS for contaminated and flammable atmospheres is not only best practice but a legal requirement under Australian WHS legislation. This document provides clear guidance on how to manage hazardous substances, monitor air quality and implement effective control measures to protect workers.
By following a compliant SWMS, businesses can reduce the likelihood of incidents such as toxic exposure, fire, or explosion, while demonstrating due diligence to regulators, contractors and clients.
Job steps that are covered in the safe work method statement include: 
