Interactive Guide to Science Lab Gas Safety
A Risk Assessment & Method Statement for Annual Inspections
Select Your Role to Personalise Your Guide
Your Key Responsibilities
This section outlines the primary duties your role is accountable for in ensuring the gas safety inspection is conducted safely and compliantly.
Step-by-Step Process Guide
This timeline shows the key phases of the inspection. Click each phase to see the specific actions required for your role.
Understanding Lab Gas Safety Systems
Modern school labs use integrated systems to ensure gas is only available when authorised and safe. The annual inspection verifies these critical systems are working correctly as per the IGEM/UP/11 Edition 3 standard.
The Core Requirement: Teacher Control
A dedicated control panel, usually at the teacher's desk, gives authorised staff ultimate control over the lab's gas supply. Key components include:
- Automatic Isolation Valve (AIV): An electronic valve on the main gas pipe that is opened and closed by the control panel, not a manual lever.
- Key Switch Control: Ensures only authorised staff can activate the gas supply. Removing the key secures the system completely.
- Emergency Stop Button: A prominent, accessible button for immediate, one-press isolation of the gas supply in an emergency.
The Mandatory Safety Check: Gas Pressure Proving
This automated test is legally required. It checks that no gas taps have been left open before the main AIV opens, preventing accidental gas release.
1. Activation
Teacher turns the key on the control panel to begin the test.
2. Integrity Test
System briefly pressurises pipework and checks for pressure loss.
3. PASS
No pressure drop. All taps are closed. The AIV opens and gas is available.
3. FAIL
Pressure drop found (open tap or leak). The AIV remains closed. No gas is supplied.
Interactive Risk Explorer
Explore the potential hazards associated with this work. The chart provides a visual summary; click on the bars or the filter buttons below to drill down into the detailed control measures for each category.
| Hazard | Potential Consequences | Primary Control Measures |
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Emergency Procedures
In the event of an emergency, these are the immediate actions required for your role. Familiarise yourself with these procedures before work begins.