Skip to main content

Developed and maintained by the NFCC

Control measure

Substance identification: Cylinders

Control measure knowledge

The symbols that may be seen in relation to gases under pressure are:


For detailed information on classification and labelling see Foundation for Hazardous Materials.

Tactical actions

Incident commanders should:
  • Use signs, labels, markings, container types and detection equipment to identify pressurised gas
  • Identify any physical damage to cylinders that may lead to potential failure