Table of Contents

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Measurement of the sound attenuation
  of hearing protectors
Annex A (informative) - Uncertainty of hearing
        protector attenuation measurements
Annex B (informative) - Minimum and maximum
        sound pressure levels for test signals
Bibliography
Annex ZA (informative) - Relationship between this
         International Standard and the Essential
         Requirements of EU Directive 89/686/EEC

Abstract

Defines a subjective method for measuring sound attenuation of hearing protectors at the threshold of hearing.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	International Organization for Standardization
Pages
ISBN
Committee	TC 43