NBN EN 403 : 2004

Foreword
Introduction
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 Mass
   6.6 Conditioning
   6.7 Connections
   6.8 Packaging
   6.9 Practical performance
   6.10 Leakage
        6.10.1 Inward leakage excluding filter penetration
               (breathing zone)
        6.10.2 Leakage into ocular zone
   6.11 Filter
        6.11.1 Gas capacity
        6.11.2 Filter penetration
   6.12 Valves
   6.13 Breathing resistance
   6.14 Flammability
   6.15 Carbon dioxide content of inhalation air
   6.16 Head hardness
   6.17 Vision
        6.17.1 Visor
        6.17.2 Impairment of vision
        6.17.3 Field of vision
   6.18 Sealing
   6.19 Integrity of filtering smoke hood at high carbon
        monoxide concentrations
   6.20 Ingress of humidity
   6.21 Temperature of inhaled air
   6.22 Communication
7 Testing
   7.1 General
   7.2 Nominal values and tolerances
   7.3 Visual inspection
   7.4 Conditioning
        7.4.1 General
        7.4.2 Mechanical strength
        7.4.3 Impact
        7.4.4 Resistance of packaging to puncture and tear
        7.4.5 Temperature
        7.4.6 Pressure changes
   7.5 Practical performance test
        7.5.1 General
        7.5.2 Exercises
   7.6 Leakage
        7.6.1 Inward leakage excluding filter penetration
              (breathing zone)
        7.6.2 Leakage into ocular zone
   7.7 Gas capacity
        7.7.1 General
        7.7.2 Carbon monoxide test
        7.7.3 Other test gases
   7.8 Filter penetration
   7.9 Breathing resistance
   7.10 Flammability
        7.10.1 Test specimen
        7.10.2 Apparatus
        7.10.3 Procedure
   7.11 Carbon dioxide content of the inhalation air
   7.12 Connections
8 Marking
   8.1 General
   8.2 Filtering smoke hood or package
   8.3 Package
9 Information supplied by the manufacturer
Annex A (informative) Method for the determination of wet
                      bulb temperature of the inhaled air
Annex ZA (informative) Clauses of this European Standard
                       addressing essential requirements or
                       other provisions of EU Directives