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Oxy-Acetylene Cutting and Thermal Lancing Risk Assessment

Oxy-Acetylene Cutting and Thermal Lancing Risk Assessment

  • • 100% Compliant with Australian WHS Acts & Regulations
  • • Fully Editable MS Word & PDF Formats Included
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Oxy-Acetylene Cutting and Thermal Lancing Risk Assessment

Product Overview

Identify and control organisational risks associated with Oxy-Acetylene Cutting and Thermal Lancing through a structured, management-level WHS Risk Management approach that focuses on governance, planning, systems and equipment selection. This Risk Assessment supports compliance with the Work Health and Safety Act and Regulations, helping to demonstrate Due Diligence and reduce operational liability exposure across your business.

Risk Categories & Hazards Covered

This document assesses risks and outlines management controls for:

  • Governance, WHS Duties & Legislative Compliance: Assessment of officer due diligence obligations, consultation requirements, and integration of oxy-fuel activities into the organisation’s WHS management system.
  • Plant, Equipment & Gas System Selection: Management of equipment specification, regulatory compliance of gas systems, and compatibility of cutting and lancing gear with site conditions and tasks.
  • Design & Layout of Gas Storage and Work Areas: Assessment of fixed and temporary gas storage, segregation from ignition sources, traffic interfaces, and safe layout of cutting and lancing work zones.
  • Gas Cylinder Management & Handling Systems: Protocols for cylinder transport, securing, storage, change-out procedures, and prevention of mechanical damage and uncontrolled gas release.
  • Hot Work & Open Flame Permit-to-Work System: Management of hot work permitting, isolations, authorisation processes, and integration with site-wide permit-to-work systems.
  • Procedures, Work Instructions & Standardisation: Development and control of documented procedures, work instructions and safe operating limits for oxy-acetylene cutting and thermal lancing activities.
  • Training, Licensing & Competency Management: Systems for verifying competency, licensing where applicable, refresher training, and competency records for employees and contractors.
  • Planning, Job Design & Integration with Other Work: Assessment of task sequencing, interaction with concurrent operations, isolation planning, and coordination with production and maintenance schedules.
  • Fire, Explosion & Ignition Source Control Systems: Management of ignition controls, housekeeping standards, fire watch arrangements, and compatibility with hazardous area classifications.
  • Ventilation, Fumes & Atmospheric Monitoring: Controls for fume generation, local exhaust ventilation, confined space interfaces, and atmospheric testing and monitoring requirements.
  • Personal Protective Equipment & Clothing Management: Selection, issue and maintenance of PPE appropriate to flame, heat, UV, noise and fume exposures, including clothing standards and eye/face protection.
  • Maintenance, Inspection & Testing of Equipment: Regimes for inspection, testing and preventive maintenance of regulators, hoses, flashback arrestors, torches and associated plant.
  • Contractor Management & Third-Party Interface: Systems for prequalification, induction, supervision and performance monitoring of contractors undertaking oxy-fuel and thermal lancing work.
  • Supervision, Monitoring & Behavioural Controls: Oversight arrangements, safety leadership expectations, behavioural controls, and field verification of compliance with procedures and permits.
  • Emergency Preparedness, Response & Incident Management: Planning for fire, explosion, gas leak and burn incidents, including emergency equipment, drills, communication protocols and post-incident review processes.

Who is this for?

This Risk Assessment is designed for Business Owners, Operations Managers, and Safety Professionals responsible for planning, approving and overseeing Oxy-Acetylene Cutting and Thermal Lancing activities within their organisation or on client sites.

Hazards & Risks Covered

Hazard Risk Description
1. Governance, WHS Duties & Legislative Compliance
  • • Lack of clear allocation of WHS responsibilities for oxy-acetylene cutting and thermal lancing activities under WHS Act 2011 and WHS Regulations
  • • PCBU, Officers and Supervisors unaware of due diligence obligations relating to high-risk hot work and open flame devices
  • • Absence of documented WHS policy addressing hot work, thermal cutting and blowtorch usage across the organisation
  • • Failure to identify and classify oxy-acetylene cutting and thermal lancing as high-risk work requiring formal risk assessment and control plans
  • • Inadequate consultation with workers and Health and Safety Representatives (HSRs) on hot work risks and controls
  • • No system to review and update procedures after incidents, near misses or legislative changes
2. Plant, Equipment & Gas System Selection
  • • Use of substandard or non-compliant oxy-acetylene equipment, hoses, regulators and torches
  • • Mismatched or incompatible components between oxygen, fuel gas and thermal lancing systems
  • • Lack of flashback arrestors or non-return valves increasing risk of explosion or fire within hoses and regulators
  • • Use of open flame devices and cutting torches without consideration of inherent safety features
  • • Failure to standardise equipment types across the site leading to inconsistent use and maintenance practices
  • • Procurement of equipment without reference to relevant Australian Standards and manufacturer specifications
3. Design & Layout of Gas Storage and Work Areas
  • • Inappropriate siting of gas cylinder stores near ignition sources, traffic routes or confined spaces
  • • Insufficient segregation between oxygen and fuel gas cylinders leading to increased fire and explosion risk
  • • Poor ventilation in areas where oxy-acetylene cutting, thermal lancing or blowtorch usage is conducted
  • • Inadequate provision of fire-resistant barriers or separation distances from combustible materials
  • • Uncontrolled public or unauthorised access to gas storage and hot work zones
  • • Lack of designated safe areas for cylinder change-out, purging and leak testing
4. Gas Cylinder Management & Handling Systems
  • • Cylinders not secured against falling, impact or vehicle collision
  • • Incorrect storage of full and empty cylinders leading to confusion and potential misuse
  • • Inadequate systems for inspection, testing and rejection of damaged or out-of-test cylinders
  • • Uncontrolled transport of cylinders on vehicles or trolleys without restraints or valve protection
  • • Poor valve management practices, including leaving valves open when not in use
  • • No formalised system for leak detection and isolation of faulty cylinders or manifolds
5. Hot Work & Open Flame Permit-to-Work System
  • • Oxy-acetylene cutting or thermal lancing undertaken without formal authorisation or assessment of surrounding hazards
  • • Failure to identify and control combustible materials, flammable atmospheres or adjacent process risks prior to hot work
  • • Inadequate specification of fire watch, isolation and post-work monitoring requirements within the permit
  • • Permit system not integrated with simultaneous operations (SIMOPS) or other high-risk work authorisation processes
  • • Permits issued by personnel lacking competence in hot work risk assessment
  • • Permit documentation inconsistent or not retained for review and auditing
6. Procedures, Work Instructions & Standardisation
  • • Absence of documented procedures for oxy-acetylene cutting, thermal lancing and use of cutting torches and blowtorches
  • • Reliance on informal or inconsistent work practices across different crews or shifts
  • • Procedures not reflecting current plant configuration, materials or job types (e.g. thick steel sections, contaminated surfaces)
  • • No clear instructions on maximum gas pressures, purge times, pre-heat durations or safe shutdown for thermal lancing systems
  • • Lack of specific guidance for unusual or high-risk tasks such as cutting coated, insulated or confined components
  • • Documented procedures not easily accessible or not used in planning and supervision
7. Training, Licensing & Competency Management
  • • Operators of oxy-acetylene cutting and thermal lancing equipment lacking formal training or demonstrated competency
  • • Supervisors unable to recognise unsafe thermal cutting practices or deficient risk controls
  • • No verification of qualifications or currency for contractors performing hot work
  • • Inadequate induction on site-specific hazards (e.g. combustible structures, ventilation constraints, process lines)
  • • Skills decay due to infrequent use of thermal lancing or specialised cutting techniques
  • • Training content focused solely on practical techniques without sufficient emphasis on system and management controls
8. Planning, Job Design & Integration with Other Work
  • • Thermal cutting or lancing planned without consideration of interaction with adjacent tasks or plant operations
  • • Inadequate assessment of material properties (e.g. flammable coatings, internal residues, pressurised contents) before selecting cutting methods
  • • Poor scheduling of hot work leading to congestion, overcrowding and increased cumulative risk
  • • Lack of alternative lower-risk cutting methods considered during planning (e.g. cold cutting, mechanical cutting)
  • • Inadequate communication of job plans to all affected workers and contractors
  • • Failure to consider fatigue, shift patterns or overtime when planning extended thermal cutting campaigns
9. Fire, Explosion & Ignition Source Control Systems
  • • Uncontrolled ignition of nearby combustibles from sparks, molten metal and slag during cutting or lancing
  • • Generation of explosive atmospheres from flammable vapours, gases or dusts exposed to open flames
  • • Lack of suitable fire detection, suppression and first attack firefighting equipment in hot work areas
  • • No designated fire watch arrangements for high-risk thermal cutting activities
  • • Inadequate management of hot work on or near tanks, vessels or piping with unknown or hazardous contents
  • • Poor housekeeping leading to build-up of combustible waste, rags, packaging and offcuts in thermal cutting zones
10. Ventilation, Fumes & Atmospheric Monitoring
  • • Accumulation of welding and cutting fumes, gases and particulates in poorly ventilated areas
  • • Generation of toxic fumes when cutting painted, coated, galvanised or contaminated materials
  • • Oxygen enrichment or depletion in confined or poorly ventilated spaces during cutting operations
  • • Lack of atmospheric monitoring in areas where hazardous gases may be present or generated
  • • No system to assess and control exposure to airborne contaminants against workplace exposure standards
  • • Reliance solely on personal protective equipment without engineering or administrative controls for fume management
11. Personal Protective Equipment & Clothing Management
  • • Inadequate or inappropriate PPE for thermal cutting and lancing hazards (heat, sparks, UV, noise, fumes)
  • • Flammable clothing or synthetic materials worn in hot work areas increasing burn severity
  • • Inconsistent PPE use due to poor availability, enforcement or maintenance
  • • No system for selection of respiratory protective equipment (RPE) based on risk assessment and exposure levels
  • • Incorrect storage, cleaning or replacement of PPE leading to degraded performance
  • • Lack of integration of PPE requirements into procurement, induction and supervision systems
12. Maintenance, Inspection & Testing of Equipment
  • • Failure of hoses, regulators, valves or torches due to wear, damage or lack of inspection
  • • Use of defective thermal lancing equipment, manifolds or connections
  • • No scheduled maintenance program for gas systems, flame arrestors and safety devices
  • • Repairs or modifications carried out by unqualified personnel using non-genuine parts
  • • Inadequate record keeping of inspections, calibrations and repairs affecting traceability
  • • Undetected gas leaks from poorly maintained equipment leading to fire or explosion risk
13. Contractor Management & Third-Party Interface
  • • Contractors performing thermal cutting or lancing without alignment to the PCBU’s WHS systems
  • • Gaps between contractor and client responsibilities for hot work permits, supervision and emergency response
  • • Inadequate pre-qualification of contractors regarding competency, equipment standards and insurance
  • • Contractor procedures conflicting with site rules for gas cylinder management and open flame control
  • • Limited oversight of subcontractors engaged by primary contractors for specialised cutting or lancing tasks
  • • Language or cultural barriers affecting understanding of critical safety information
14. Supervision, Monitoring & Behavioural Controls
  • • Inadequate supervision of hot work areas leading to drift from procedures and permit conditions
  • • Normalisation of deviance where shortcuts in thermal cutting and lancing practices become accepted
  • • Failure to intervene when unsafe behaviours or system bypasses are observed
  • • Insufficient monitoring of compliance with cylinder storage, segregation and housekeeping rules
  • • No structured observation program to identify behavioural and cultural issues related to hot work
  • • Supervisors overextended across multiple high-risk tasks, reducing presence at critical activities
15. Emergency Preparedness, Response & Incident Management
  • • Lack of coordinated emergency response plans for fires, explosions or serious burns arising from thermal cutting and lancing
  • • Insufficient first aid capability for burns, smoke inhalation and eye injuries
  • • Emergency procedures not tailored to gas cylinder incidents, rapid evacuation or local site constraints
  • • Workers and contractors unfamiliar with emergency communication, muster points or shutdown requirements
  • • Inadequate incident reporting and investigation systems failing to identify root causes and corrective actions
  • • No post-incident review or learning process specific to hot work events
16. Documentation, Records & Continuous Improvement
  • • Incomplete or inaccurate records of permits, training, inspections and maintenance relating to hot work
  • • Difficulty demonstrating compliance with WHS Act 2011 and Regulations due to poor documentation systems
  • • Lack of trend analysis on incidents, near misses and audit findings specific to oxy-acetylene cutting and thermal lancing
  • • No systematic process for capturing worker feedback on effectiveness of hot work controls
  • • Obsolete documents remaining in circulation causing confusion and inconsistent practices
  • • Continuous improvement activities not prioritised or resourced

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Legislation & References

This document was researched and developed to align with:

  • Work Health and Safety Act 2011
  • Work Health and Safety Regulations 2017
  • AS/NZS ISO 31000:2018: Risk management — Guidelines
  • Model Code of Practice – How to Manage Work Health and Safety Risks: Framework for systematic identification, assessment and control of WHS risks.
  • Model Code of Practice – Managing the Work Environment and Facilities: Requirements for ventilation, amenities, and safe workplace layout relevant to hot work operations.
  • Model Code of Practice – Managing Risks of Hazardous Chemicals in the Workplace: Guidance on storage, handling and risk control for compressed and flammable gases.
  • AS 4839: The safe use of portable and mobile oxy-fuel gas systems for welding, cutting, heating and allied processes.
  • AS 4289: Oxygen and oxygen-enriched atmospheres — Safety management.
  • AS 4332: The storage and handling of gases in cylinders.
  • AS/NZS 1674.1: Safety in welding and allied processes – Fire precautions.
  • AS/NZS 1715 & AS/NZS 1716: Selection, use and maintenance of respiratory protective equipment and performance requirements.
  • AS 1319: Safety signs for the occupational environment, supporting labelling and signage for gas storage and hot work areas.
Standard Risk Assessment Features (Click to Expand)
  • Comprehensive hazard identification for all activities
  • Risk rating matrix with likelihood and consequence analysis
  • Existing control measures evaluation
  • Residual risk assessment after controls
  • Hierarchy of controls recommendations
  • Action priority rankings
  • Review and monitoring requirements
  • Consultation and communication records
  • Legal compliance references
  • Sign-off and approval sections

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