NBN EN 134 : 1998

Foreword
1 Scope
2 Normative references
3 Nomenclature
    3.1 Facepieces
    3.2 Filtering devices
    3.3 Breathing apparatus
Annex ZA (informative) Clauses of this European Standard
addressing essential requirements or other provisions of
EC Directives

Refers to respiratory protective devices. It provides a nomenclature for typical components of respiratory protective devices but it does not specify what or how many components are used and where they are located in the apparatus. The object is to achieve a harmonized nomenclature for respiratory protective devices.