BS EN 139:1995 Respiratory protective devices - Compressed air line breathing apparatus for use with a full face mask, half mask or a mouthpiece assembly - Requirements, testing, marking

This European Standard EN 139:1994 has the status of a British Standard. This British Standard, having been prepared under the direction of the Personal Safety Equipment Standards Policy Committee, was published under the authority of the Standards Board and comes into effect on 15 January 1995. — 29 p. — ISBN: 0 580 22236 5.
The European Standard specifies minimum requirements for compressed air line breathing apparatus for use with a full face mask, a half mask or a mouthpiece assembly as a respiratory protective device. Escape and diving apparatus and that used in abrasive blasting operations are not covered by this standard. Laboratory and practical performance tests are included for the assessment of compliance with the requirements.