Identifying CylindersThe gas in a cylinder can be identified by referring to the cylinder label or 'collar'. This label also provides vital safety information.

The diagram below explains the different elements of a typical cylinder label:

BOC Oxygen Cylinder Shoulder Label

Please note:
  • it is important to read the cylinder label to identify cylinder content - cylinder colour acts merely as a guide and should never be used in isolation to determine cylinder content
  • a cylinder without a label should not be used but returned to the supplier
  • BOC propane cylinders can be identified either by a red hazard diamond stencilled on the body of the cylinder or by a label on the shoulder of the cylinder
  • for more detail on cylinder identification, colour coding and labelling standards under the new European cylinder colour coding system, visit the  British Compressed Gases Association website
  • BOC is not responsible for the content of external internet sites

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