ISO 4869-1:1990

Acoustics — Hearing protectors — Part 1: Subjective method for the measurement of sound attenuation

Publication date:   Dec 20, 1990

95.99 Withdrawal of Standard   Oct 4, 2018

General information

95.99 Withdrawal of Standard   Oct 4, 2018

ISO

ISO/TC 43/SC 1 Noise

International Standard

13.340.20   Head protective equipment

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Scope

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.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 4869:1981

NOW

WITHDRAWN
ISO 4869-1:1990
95.99 Withdrawal of Standard
Oct 4, 2018

REVISED BY

ABANDON
ISO/PWI 4869-1

PUBLISHED
ISO 4869-1:2018