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  • NEN EN ISO 4869-3 : 2007

    Withdrawn A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.

    ACOUSTICS - HEARING PROTECTORS - PART 3: MEASUREMENT OF INSERTION LOSS OF EAR-MUFF TYPE PROTECTORS USING AN ACOUSTIC TEST FIXTURE

    Available format(s): 

    Withdrawn date:  23-03-2017

    Language(s): 

    Published date:  12-01-2013

    Publisher:  Netherlands Standards

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

    Foreword
    Introduction
    1 Scope
    2 Normative references
    3 Terms and definitions
    4 Measurement principle
    5 Measurement of the insertion loss of ear-muffs
    6 Reporting of data
    Annex A (informative) Use of the acoustic test fixture as a
                            directional microphone
    Annex B (informative) Uncertainty of insertion loss measurements
    ANNEX ZA (informative) Relationship between this International
                            Standard and the Essential Requirements
                            of EU Directive 89/686

    Abstract - (Show below) - (Hide below)

    Defines a method for measuring the insertion loss of ear-muff type hearing protectors using an acoustic test fixture.

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

    Development Note Supersedes NEN NPR ISO/TR 4869-3. (09/2007)
    Document Type Standard
    Publisher Netherlands Standards
    Status Withdrawn
    Supersedes
    View more information

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