• NBN EN 12941 : 1998 AMD 2 2009

    Current The latest, up-to-date edition.

    RESPIRATORY PROTECTIVE DEVICES - POWERED FILTERING DEVICES INCORPORATING A HELMET OR A HOOD - REQUIREMENTS, TESTING, MARKING

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    Published date:  12-01-2013

    Publisher:  Belgian Standards

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    Table of Contents - (Show below) - (Hide below)

    Foreword
    Introduction
    1 Scope
    2 Normative references
    3 Definitions and description
    4 Designation
    5 Classification
    6 Requirements
        6.1 Materials
        6.2 Resistance to temperature
        6.3 Helmets and hoods
        6.4 Inward leakage
        6.5 Breathing resistance
        6.6 Air supply
        6.7 Checking and warning facilities
        6.8 Clogging
        6.9 Electrical components
        6.10 Breathing hose
        6.11 Filters
        6.12 Noise level
        6.13 Carbon dioxide content of the inhalation air
        6.14 Resistance to flame
        6.15 Exhalation means
        6.16 Mass
        6.17 Practical performance
    7 Testing
        7.1 Conditioning
        7.2 Visual inspection
        7.3 Inward leakage
        7.4 Field of vision
        7.5 Visor robustness
        7.6 Breathing resistance
        7.7 Air supply flow rate
        7.8 Clogging
        7.9 Resistance to collapse of breathing hose
        7.10 Strength of hose and couplings and of connection
              between hood and breathing hose
        7.11 Mechanical strength of filters
        7.12 Filters
        7.13 Noise level
        7.14 Carbon dioxide content of the inhalation air
        7.15 Resistance to flame
        7.16 Practical performance
        7.17 Material porosity
    8 Marking
    9 Information 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
    Annex ZA (informative) Clauses of this European standard
    addressing essential requirements or other provisions of
    EU Directives

    Abstract - (Show below) - (Hide below)

    Defines minimum requirements for powered filtering devices incorporating a helmet or hood with gas, particle or combined filter(s) for respiratory protection.

    General Product Information - (Show below) - (Hide below)

    Development Note Supersedes NBN EN 146. (08/2005)
    Document Type Standard
    Publisher Belgian Standards
    Status Current
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