NS EN 14593-2 : 1ED 2005

Foreword
Introduction
1 Scope
2 Normative references
3 Terms, definitions and pictograms
4 Description
5 Requirements
  5.1 General
  5.2 Ergonomics
  5.3 Materials
  5.4 Water immersion
  5.5 Cleaning and disinfecting
  5.6 Practical performance
  5.7 Connections
  5.8 Body harness or belt
  5.9 Performance requirements after storage
  5.10 Flammability
  5.11 Resistance to pressure
  5.12 Mobile high pressure air supply systems
  5.13 Warning devices for mobile high pressure air
       supply systems
  5.14 Compressed air supply tube
  5.15 Breathing hose
  5.16 Lung governed demand valve
  5.17 Adjustable parts
  5.18 Half masks
  5.19 Inward leakage
  5.20 Inhalation and exhalation valves
  5.21 Breathing resistance
  5.22 Carbon dioxide content of inhalation air
  5.23 Leaktightness
6 Testing
  6.1 General
  6.2 Water immersion
  6.3 Visual inspection
  6.4 Practical performance
  6.5 Strength of connections to facepiece, demand valve,
       medium pressure connecting tube and breathing hose
  6.6 Resistance to collapse of breathing hose
  6.7 Strength of compressed air supply tube, body harness
       and couplings
  6.8 Storage conditioning
  6.9 Flammability
  6.10 Pressure reducer relief valve
  6.11 Resistance to kinking of compressed air supply tube
  6.12 Resistance to collapse of compressed air supply tube
  6.13 Heat resistance of compressed air supply tube
  6.14 Inward leakage
  6.15 Tests for lung-governed demand valve
  6.16 Determination of carbon dioxide content of the
       inhalation air
  6.17 Testing of audible warning device
7 Marking
8 Information supplied by the manufacturer
Annex A (informative) Marking
Annex ZA (informative) Relationship between this European
                       Standard and the Essential Requirements
                       of EU Directive 89/686/EEC (PPE)

Describes minimum requirements for compressed air line breathing apparatus with demand valve for use with a half mask at positive pressure, as a respiratory protective device.