Product Overview

This Safe Work Method Statement (SWMS) for Disconnection Of Gas Lines sets out the critical steps, risk controls, and responsibilities required to safely isolate and disconnect gas services on Australian worksites. It is a comprehensive, pre-filled document designed to support WHS compliance and the safe management of high risk construction work involving gas installations and alterations.

Activities & Specific Tasks Covered

This document includes specific risk controls for:

• Planning and preparation for gas line disconnection, including site assessment and consultation with relevant duty holders
• Verification of gas supply isolation, including lockout/tagout procedures and confirmation of zero energy state
• Use of calibrated gas detection equipment to check for residual gas and potential leaks prior to disconnection
• Safe depressurisation and venting of gas lines to minimise the risk of explosion, fire, or asphyxiation
• Selection and use of intrinsically safe tools and non-sparking equipment in hazardous atmospheres
• Implementation of hot work controls where cutting, grinding, or welding near gas lines is required
• Control of ignition sources, including electrical equipment, static discharge, and nearby plant or vehicles
• Safe disconnection, capping, and sealing of redundant gas lines to prevent future leaks or inadvertent reconnection
• Handling, temporary storage, and disposal of removed gas fittings, pipework, and associated waste materials
• Emergency response procedures for gas leaks, fire, or worker exposure, including evacuation and communication protocols
• Coordination with other trades and site management to manage overlapping works and shared risks
• Use of appropriate personal protective equipment (PPE) such as flame-resistant clothing, eye protection, and respiratory protection where required
• Documentation of permits to work, isolation certificates, and post-disconnection testing and verification records

Who is this for?

This SWMS is designed for licensed gas fitters, plumbers, mechanical services contractors, facility maintenance teams, and site supervisors involved in the isolation, alteration, or removal of gas services on Australian worksites.

Specific Job Steps & Hazards Covered

Legislation & References

This document was researched and developed to align with:

• Safe Work Australia – Managing Risks of Hazardous Chemicals in the Workplace Code of Practice: Guidance on identifying, assessing, and controlling risks from hazardous chemicals, including fuel gases.
• Safe Work Australia – Managing the Risk of Fire and Explosions at the Workplace Code of Practice: Requirements for controlling ignition sources and preventing fires and explosions during gas work.
• Safe Work Australia – How to Manage Work Health and Safety Risks Code of Practice: Framework for risk management applied to gas line disconnection activities.
• Safe Work Australia – Construction Work Code of Practice: Requirements for planning and managing high risk construction work involving services and utilities.
• AS/NZS 5601 Gas Installations: Technical requirements for the safe installation, alteration, and disconnection of gas installations.
• AS/NZS 60079 (Series) Explosive Atmospheres: Requirements for equipment and work practices in potentially explosive gas atmospheres.
• Work Health and Safety Act 2011
• Work Health and Safety Regulations 2017