15/30297373 DC : 0
NA
Status of Standard is Unknown
BS EN ISO 4869-1 - ACOUSTICS - HEARING PROTECTORS - PART 1: SUBJECTIVE METHOD FOR THE ASUREMENT OF SOUND ATTENUATION
Hardcopy , PDF
English
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
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