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  • ISO/TR 4869-4:1998

    Withdrawn A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.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 4: Measurement of effective sound pressure levels for level-dependent sound-restoration ear-muffs

    Available format(s):  PDF, PDF 3 Users, PDF 5 Users, PDF 9 Users, Hardcopy

    Withdrawn date:  16-02-2019

    Language(s):  English, French

    Published date:  01-10-1998

    Publisher:  International Organization for Standardization

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

    Document Type Technical Report
    Publisher International Organization for Standardization
    Status Withdrawn

    Standards Referenced By This Book - (Show below) - (Hide below)

    EN 352-7:2002 Hearing protectors - Safety requirements and testing - Part 7: Level-dependent ear-plugs
    PD 6545:2005 Intended use of human head and ear simulators-guide
    ANSI/ASA S12.42 : 2010 METHODS FOR THE MEASUREMENT OF INSERTION LOSS OF HEARING PROTECTION DEVICES IN CONTINUOUS OR IMPULSIVE NOISE USING MICROPHONE-IN-REAL-EAR OR ACOUSTIC TEST FIXTURE PROCEDURES
    BS EN 352-7:2002 Hearing protectors. Safety requirements and testing Level-dependent ear-plugs

    Standards Referencing This Book - (Show below) - (Hide below)

    IEC 61094-4:1995 Measurement microphones - Part 4: Specifications for working standard microphones
    ISO 4869-1:1990 Acoustics Hearing protectors Part 1: Subjective method for the measurement of sound attenuation
    ISO 4869-2:1994 Acoustics Hearing protectors Part 2: Estimation of effective A-weighted sound pressure levels when hearing protectors are worn
    ISO/TR 4869-3:1989 Acoustics Hearing protectors Part 3: Simplified method for the measurement of insertion loss of ear-muff type protectors for quality inspection purposes
    IEC 61260:1995 Electroacoustics - Octave-band and fractional-octave-band filters
    IEC 60651:1979+AMD1:1993+AMD2:2000 CSV Sound level meters
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