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Control measure
Isolate or limit ignition sources

Control measure knowledge

Where gases are within flammable or explosive limits, any ignition source may cause combustion or explosion. Where inherent ignition sources are present and identified, isolating the ignition source will help to reduce the risk to casualties and rescuers.

Tactical actions

Incident commanders should:
  • Isolate or limit all ignition sources before ventilating a confined space where flammable gases are present