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

Publication date:   Nov 30, 1989

95.99 Withdrawal of Standard   Jun 26, 2007

General information

95.99 Withdrawal of Standard   Jun 26, 2007

ISO

ISO/TC 43/SC 1 Noise

Technical Report

13.340.20   Head protective equipment

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Scope

The procedure specified may be used to investigate production spreads of performance as part of type approval or certification procedures and the change of performance with age. It is not intended to be used as the basic test for type approval purposes. Performance data obtained are not to be quoted as representing the real-ear sound attenuation of an ear-muff, nor the protection provided by the ear-muff.

Life cycle

NOW

WITHDRAWN
ISO/TR 4869-3:1989
95.99 Withdrawal of Standard
Jun 26, 2007

REVISED BY

PUBLISHED
ISO 4869-3:2007