Standard

ISO 4869-1:1990

Dec 1990 Withdrawn

Note: Latest version: ISO 4869-1:2018

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Abstract

Specifies a method for measuring sound attenuation at the threshold of hearing. The procedure is designed to yield values close to the maximum attenuation which are not normally attained under field conditions. The values reflect the attenuating characteristics only to the extent that users wear the device in the same manner as did the test subjects. Data are collected at low sound pressure levels but which are also representative of the values at higher sound pressure levels.

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Standard from ISO
Published: December 20 1990
Withdrawn: October 4 2018
Edition: 1
Document type: IS
Pages
ISBN:

Publisher: ISO
Distributor: ISO
ICS: 13.340.20
International TC: ISO/TC 43/SC 1

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Revised by: ISO 4869-1:2018
Adopted by: NF EN 24869-1:1993
Revises: ISO 4869:1981

ISO 4869-1:1990

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ISO 4869-1:2018

ISO 4869-1:1990

ISO 4869:1981

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ISO 4869-1:2018

ISO 4869-1:1990

ISO 4869:1981

Abstract

Products specifications

Product Relations

Product life cycle