Standard

NS-EN ISO 4869-4:2000

Oct 2000 Withdrawn

Corrigendums and amendments are bought separately.

Language English

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Abstract

This Technical Report specifies a physical test method for level-dependent sound-restoration ear-muffs. The physical measurements are made with the acoustic test fixture (ATF) according to ISO/TR 4869-3 or with a suitable head and torso simulator (HATS) with a suitable acoustic isolation (see clause 7). The results of these tests in combination with the results from the ISO 4869-1 tests can be used to estimate the effective A-weighted sound pressure level when sound restoration ear-muffs are worn. The method described is not suitable for measurement of the effective sound pressure level under ear-muffs in the case of impulsive noise nor for active noise reduction ear-muffs.

Document information

Standard from SN
Published: 3 October 2000
Withdrawn: 1 August 2016
Edition: 1
Version: 1
Document type: NAT
Pages
ISBN:

ICS 13.340.20
National Committee SN/K 1

Legal references

EU law:

Law reference	Restrictions
89/686/EEC

Product Relations

Replaced by: NS-EN 352-4:2001
Adopted from: EN ISO 4869-4:2000, 0

NS-EN ISO 4869-4:2000

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Abstract

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