Historical
BS EN 14594:2005
Respiratory protective devices. Continuous flow compressed air line breathing apparatus. Requirements, testing, marking (British Standard)
This document specifies minimum requirements for continuous flow compressed air line breathing apparatus for use with a full face mask, half mask, or incorporating a hood, helmet or suit, and apparatus used in abrasive blasting operations, as a respiratory protective device. Escape and diving apparatus are not covered by this document. Laboratory and practical performance tests are included for the assessment of conformance to the requirements.
British Standards Institution [bsi]