EN 137:2006

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Description
5 Classification
6 Requirements
  6.1 General
  6.2 Ergonomics
  6.3 Design
  6.4 Materials
  6.5 Cleaning and disinfecting
  6.6 Mass
  6.7 Connections
  6.8 Full face mask
  6.9 Body harness
  6.10 Practical performance
  6.11 Resistance to temperature and flammability
  6.12 Protection against particulate matter
  6.13 High and medium pressure parts
  6.14 Pressure vessel(s)
  6.15 Pressure vessel valve(s)
  6.16 Pressure reducer
  6.17 Pressure indicator and tube
  6.18 Warning device
  6.19 Flexible hoses and tubes
  6.20 Lung governed demand valve
  6.21 Breathing resistance
  6.22 Static pressure
  6.23 Leak-tightness
  6.24 Pre-conditioning
7 Testing
  7.1 General
  7.2 Nominal values and tolerances
  7.3 Visual inspection
  7.4 Resistance to temperature and flammability
  7.5 Pressure reducer
  7.6 Warning device
  7.7 Leak-tightness
  7.8 Water immersion
  7.9 Strength of connections to full face mask, demand valve
       and breathing hose (if fitted)
  7.10 Resistance to collapse of breathing hose
  7.11 Practical performance
  7.12 Breathing resistance
8 Marking
9 Information supplied by the manufacturer
Annex A (normative) Second medium pressure connector
  A.1 General
  A.2 Requirements
  A.3 Information supplied by the manufacturer
Annex B (normative) Ambient air bypass device
  B.1 General
  B.2 Requirements
  B.3 Information supplied by the manufacturer
Annex C (normative) Requirements for static and dynamic pressure
                    for apparatus with thread connector in
                    accordance with EN 148-3
  C.1 General
  C.2 Static pressure
  C.3 Dynamic pressure
  C.4 Exhalation valve
  C.5 Testing of dynamic pressure
Annex D (informative) Marking
Annex ZA (informative) Relationship between this European
                       Standard and the Essential Requirements
                       of EU Directive 89/686/EEC (PPE)
Bibliography

This European Standard specifies minimum performance requirements for self-contained open-circuit compressed air breathing apparatus with full face mask used as respiratory protective devices, except escape apparatus and diving apparatus.Such equipment is intended for use in work situations where the risk on over pressurisation of the pressure vessels with their valves due to hot environmental conditions is low.Laboratory and practical performance tests are included for the assessment of compliance with the requirements.