NEN EN 1835 : 1999

Foreword
Introduction
1 Scope
2 Normative references
3 Definitions
4 Description
5 Classification
6 Designation
7 Requirements
      7.1 Materials
      7.2 Resistance to temperature
      7.3 Flammability
      7.4 Cleaning and disinfecting
      7.5 Body harness or belt
      7.6 Connectors
      7.7 Breathing hose
      7.8 Continuous flow valve
      7.9 Checking and warning facilities
      7.10 Compressed air supply tube
      7.11 Helmets and hoods
      7.12 Adjustable parts
      7.13 Noise level inside helmet or hood
      7.14 Carbon dioxide content of the inhalation air
      7.15 Breathing resistance
      7.16 Leaktightness
      7.17 Inward leakage
      7.18 Practical performance
8 Testing
      8.1 General
      8.2 Visual inspection
      8.3 Resistance to temperature
      8.4 Flammability
      8.5 Mechanical resistance of eyepiece(s) or visor(s)
      8.6 Strength of attachment of exhalation valve
      8.7 Breathing resistance
      8.8 Inward leakage
      8.9 Strength of connections to helmet/hood and waist
             belt or body harness
      8.10 Effective mass supported by the facepiece
      8.11 Strength of compressed air supply tube, couplings
             and continuous flow valve
      8.12 Resistance to kinking of the compressed air
             supply tube
      8.13 Resistance to collapse of compressed air supply
             tube
      8.14 Leaktightness
      8.15 Heat resistance of compressed air supply tube
      8.16 Resistance to collapse of breathing hose
      8.17 Air supply flow rate
      8.18 Checking and warning facilities
      8.19 Carbon dioxide content of the inhalation air
      8.20 Noise level inside helmet or hood
      8.21 Air porosity
      8.22 Practical performance
9 Marking
10 Information to be supplied by the manufacturer
Annex A (normative) Fitting procedure for hoods which seal
                    around the neck and which may or may not
                    incorporate a head harness
Annex B (informative) Marking of components
Annex ZA (informative) Clauses of this European Standard
                       addressing essential requirements or
                       other provisions of EU Directives

Gives minimum requirements for light duty construction compressed air line breathing apparatus, having helmets or hoods, for using in particulate, gaseous or combined contaminated atmospheres. This equipment is meant for use in situations where risk of damage to the compressed air supply tube is low and where the wearer's movements are restricted. Diving and escape apparatus and that used in abrasive blasting conditions are not included. Covers laboratory tests and practical performance tests for assessment of compliance with the requirements.