BS EN ISO 4869-1:2018

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Books

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BSI

Acoustics. Hearing protectors. Subjective method for the measurement of sound attenuation|Audiofrequencies, Auditory threshold, Performance testing, Safety measures, Ear muffs, Audibility, Protective clothing, Audiometry, Acoustic testing, Attenuation, Test equipment, Ear plugs, Ear protectors, Acoustic measurement, Hearing (auditory perception), Sound intensity, Reverberation time

186 GBP