Bottles/gas cylinders for breathing apparatus are covered by the Pressure Equipment Directive, for example :
- bottles/gas cylinders for compressed air, oxygen or other breathable mixtures, such as portable cylinders for divers, fire fighters and asbestos workers
The following bottles for breathing equipment are not in the scope of the Pressure Equipment Directive:
- gas cylinders to be installed in oxygen/air centres of hospitals
- cryogenic receptacles
According to the circumstances of the transport, the requirements of ADR/RID/IMDG/ICAO may also be applicable.
If the manufacturer intends bottles to be used both for breathing equipment and also for transport of dangerous goods, they shall meet the requirements of both directives and bear both the CE-mark and the π-mark (see PED Guideline A-30).