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  • NS EN ISO 4869-3 : 1ED 2007

    Current The latest, up-to-date edition.

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

    Available format(s): 

    Language(s): 

    Published date:  12-01-2013

    Publisher:  Norwegian Standards (Norges Standardiseringsforbund)

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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 NS ISO 4869-3. (11/2007)
    Document Type Standard
    Publisher Norwegian Standards (Norges Standardiseringsforbund)
    Status Current
    Supersedes
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