scope:

This European Standard specifies requirements for the quality of compressed air supplied for use with the following types of equipment: a) Respiratory protective devices - Self-contained open-circuit compressed breathing apparatus and open-circuit compressed air underwater breathing apparatus b) Respiratory protective devices - Compressed air line breathing apparatus and compressed air line breathing apparatus for use under water c) Respiratory protective devices - Self-contained open-circuit compressed air breathing apparatus including full face mask or mouthpiece assembly or hoods