Product Overview

Summary: This Pressure Testing and Pipeline Integrity Safe Operating Procedure provides a clear, step‑by‑step framework for safely conducting hydrostatic, pneumatic and integrity tests on pipelines and associated equipment. Designed for Australian conditions and regulatory expectations, it helps businesses control high‑risk energy, pressure and environmental hazards while demonstrating robust due diligence under WHS law.

Pressure testing and pipeline integrity verification are critical phases in the construction, commissioning and ongoing maintenance of pipelines in sectors such as water, sewer, oil and gas, mining and industrial processing. These activities carry significant risk: stored energy, pipe or fitting failure, unexpected releases and environmental harm can all result from poorly planned or inconsistently executed tests. This SOP provides a structured, repeatable approach to planning, conducting and documenting pressure tests so that work is completed safely, efficiently and in compliance with Australian WHS and industry standards.

The document sets out clear responsibilities, pre‑test planning requirements, isolation and lock-out processes, selection and calibration of test equipment, safe pressurisation and depressurisation steps, and criteria for test acceptance or failure. It also integrates hazard identification, risk controls and emergency response planning specific to pressure testing scenarios, including hydrostatic and pneumatic testing. By standardising how your organisation approaches pipeline integrity testing, this SOP reduces reliance on informal practices, supports consistent training and induction, and provides auditable evidence that your business is managing high‑risk work in line with legislative and industry expectations.

For organisations managing distributed assets or multiple worksites, this SOP also addresses communication, permitting and coordination with other site activities to prevent conflicting operations and inadvertent exposure of workers or the public. It helps you embed a culture of planning, verification and controlled execution, minimising rework and unplanned downtime while protecting people, plant and the environment.

Key Benefits

• Ensure consistent, safe execution of hydrostatic and pneumatic pressure tests across all projects and sites.
• Reduce the risk of catastrophic pipe or fitting failure by mandating robust pre‑test inspections and controls.
• Demonstrate compliance with Australian WHS legislation and relevant pipeline and pressure equipment standards.
• Streamline training and onboarding by providing a clear, practical reference for supervisors and field crews.
• Minimise costly rework, leaks and unplanned shutdowns through structured integrity verification and documentation.

Who is this for?

• Pipeline Supervisors
• Project Engineers
• WHS Managers
• Field Technicians
• Mechanical Fitters
• Commissioning Engineers
• Operations Managers
• Maintenance Planners
• Gas and Utilities Supervisors
• Oil and Gas Construction Managers

Hazards Addressed

• Stored energy release from sudden pipeline or fitting rupture during pressure testing
• High‑pressure fluid or gas injection injuries to workers
• Impact from flying debris or failed components under pressure
• Uncontrolled release of water, chemicals, gas or product to the environment
• Exposure to hazardous test media (e.g. chemicals, hydrocarbons, contaminated water)
• Slips, trips and falls around flooded or wet work areas during hydrostatic testing
• Noise exposure from venting, blow‑downs or sudden releases
• Manual handling strains from hoses, test pumps, blinds and temporary fittings
• Asphyxiation or atmospheric hazards in confined spaces associated with pipelines or pits
• Vehicle and plant interaction risks during mobile test unit operations

Included Sections

• 1.0 Purpose and Scope
• 2.0 Definitions and Abbreviations
• 3.0 Roles and Responsibilities
• 4.0 Applicable Legislation, Standards and References
• 5.0 Competency, Training and Authorisation Requirements
• 6.0 Pre‑Test Planning and Risk Assessment
• 7.0 Pipeline Isolation, Lock‑Out and Tag‑Out Requirements
• 8.0 Selection, Inspection and Calibration of Test Equipment
• 9.0 Site Preparation, Barricading and Exclusion Zones
• 10.0 Pressure Testing Methods (Hydrostatic, Pneumatic and Other Specified Methods)
• 11.0 Step‑by‑Step Pressure Testing Procedure
• 12.0 Monitoring, Communication and Test Control Points
• 13.0 Acceptance Criteria, Test Records and Reporting
• 14.0 Management of Test Failures, Leaks and Defects
• 15.0 Depressurisation, Draining and Media Disposal
• 16.0 Hazard Identification and Control Measures
• 17.0 Confined Space and Hazardous Area Considerations
• 18.0 Emergency Response and Incident Management
• 19.0 Post‑Test Inspection, Reinstatement and Handover
• 20.0 Document Control, Review and Continuous Improvement

Legislation & References

• Work Health and Safety Act 2011 (Cth and harmonised state/territory versions)
• Work Health and Safety Regulations 2011 (Part 5.1 Plant and structures, Part 4.3 Confined spaces)
• Safe Work Australia – Code of Practice: Managing Risks of Plant in the Workplace
• Safe Work Australia – Code of Practice: Confined Spaces
• AS 2885 series: Pipelines – Gas and liquid petroleum (where applicable)
• AS/NZS 3788: Pressure equipment – In‑service inspection
• AS 4037: Pressure equipment – Examination and testing
• AS/NZS 60079.14: Explosive atmospheres – Electrical installations design, selection and erection (for hazardous areas)
• AS/NZS 4801: Occupational health and safety management systems (superseded but still commonly referenced)
• ISO 9001: Quality management systems – Requirements (for documentation and traceability practices)