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BS-EN-24869-1
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Acoustics. Hearing protectors. Sound attenuation of hearing protectors. Subjective method of measurement
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Obsolete Revision Information:
REPLACED BY BS-EN-ISO-4869-1 - WITHDRAWN IN 2018 - Nov. 28, 2018
1993 EDITION - Acoustics. Hearing protectors. Sound attenuation of hearing protectors. Subjective method of measurement - June 28, 1991