CalmComplianceRisk Assessment template
School industrial or commercial gas plant risk assessment
- Version
- v1
- Updated
- 1 October 2026
- Audience
- Schools, governing bodies, responsible persons, facilities teams, competent gas and ventilation professionals, and contractors involved in the design, operation or maintenance of industrial or commercial gas plant.
- Jurisdiction
- england
Activity assessed
Assessment of the design, installation, operation, ventilation, gas-supply interlocking, flame-failure protection, explosion protection, carbon monoxide prevention, combustion-product removal and maintenance arrangements for industrial or commercial gas plant. Applicability remains conditional on the school operating industrial or commercial gas plant and should be confirmed for the premises.
Assess each hazard and its controls against your site before use. Template ratings require local review.
Hazards and controls
Ignition of unburnt gas could cause an explosion, including where gas accumulates following failed ignition, flame failure, leakage or an ineffective shutdown arrangement.
- Existing controls
- No site-specific existing controls have been provided. Record only controls verified at the premises, including relevant equipment safeguards, gas isolation arrangements, inspection records and maintenance arrangements.
- Proposed controls
- Confirm the plant and its installation have been assessed for explosion risk. Consider and document the need for explosion relief and/or flame-failure protection, with the decision supported by the plant design and competent technical assessment. Define inspection, testing, fault response and maintenance arrangements for the relevant safeguards. Record any limitations, required actions and responsible persons without assigning a risk score.
Local assessment and additional controls
Failure of the appliance flame or ignition system could allow unburnt gas to enter the plant or surrounding area.
- Existing controls
- No site-specific existing controls have been provided. Verify whether flame-failure protection is installed, suitable for the equipment and subject to documented testing and maintenance.
- Proposed controls
- Assess whether flame-failure protection is necessary for each relevant appliance or item of plant. Where required by the assessment, specify suitable protection, ensure it is included in the plant design or modification, and define competent testing and maintenance arrangements. Document how faults are identified, isolated and escalated.
Local assessment and additional controls
Insufficient or failed appliance ventilation, or failure of the gas-supply interlock with ventilation, could permit unsafe operation, gas accumulation or incomplete combustion.
- Existing controls
- No site-specific existing controls have been provided. Record the verified ventilation arrangements, interlock functions, isolation controls, inspection records and maintenance status.
- Proposed controls
- Confirm that the gas supply is interlocked with the appliance ventilation. Assess the interlock logic and failure response for the relevant plant, including whether gas supply is prevented or interrupted when required ventilation is unavailable. Define commissioning, periodic testing, fault reporting and corrective maintenance arrangements. Do not rely on unverified operation of the interlock.
Local assessment and additional controls
Dangerous levels of carbon monoxide could be produced by defective, poorly adjusted, incorrectly operated or inadequately ventilated gas plant.
- Existing controls
- No site-specific existing controls or monitoring results have been provided. Record verified design information, commissioning evidence, inspection and maintenance records, and any relevant carbon monoxide monitoring arrangements.
- Proposed controls
- Confirm that the equipment is designed, operated and maintained to prevent dangerous levels of carbon monoxide. Assess combustion performance and ventilation as part of competent commissioning, inspection and maintenance. Identify conditions requiring the plant to be taken out of use, and define arrangements for reporting, investigation and corrective action where unsafe combustion or carbon monoxide concerns are identified.
Local assessment and additional controls
Use of industrial or commercial gas plant in a poorly ventilated space could allow gas or carbon monoxide to accumulate and could impair safe combustion.
- Existing controls
- No site-specific existing controls have been provided. Verify the room, enclosure or plant area, its ventilation provision, restrictions on use and any arrangements for preventing operation when ventilation is inadequate.
- Proposed controls
- Assess whether the plant is located and operated in a suitably ventilated space. Do not use the equipment in a poorly ventilated space. Confirm that ventilation is sufficient for safe appliance operation and that combustion products can be removed. Document any required changes to the space, ventilation system, operating restrictions or interlock arrangements before use.
Local assessment and additional controls
Inadequate ventilation or defective extraction could prevent combustion products from being removed, exposing people to harmful products of combustion and contributing to unsafe combustion.
- Existing controls
- No site-specific existing controls have been provided. Record verified extraction and ventilation arrangements, discharge routes, inspection and maintenance records, and any restrictions on plant operation.
- Proposed controls
- Confirm that there is enough ventilation to remove combustion products from the relevant plant area. Assess the extraction and discharge arrangements for suitability during normal operation and foreseeable failure conditions. Define inspection, testing, cleaning, maintenance and fault-response arrangements, and identify circumstances in which the plant must not be operated.
Local assessment and additional controls
Deficiencies in design, operation or maintenance could introduce or fail to detect explosion, flame-failure, ventilation, gas-supply interlock, carbon monoxide or combustion-product hazards.
- Existing controls
- No site-specific existing controls have been provided. Record the verified competence arrangements, operating instructions, planned maintenance, inspection and testing records, defect management and change-control arrangements.
- Proposed controls
- Assess the complete lifecycle arrangements for the plant: design and installation, commissioning, operating instructions, user competence, inspection, testing, maintenance, defect reporting and change control. Ensure relevant safeguards and ventilation arrangements are included in those arrangements. Record evidence reviewed, outstanding actions, interim restrictions and the review trigger for changes to the plant, fuel supply, ventilation, room use or operating method.
Local assessment and additional controls