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ISO 4869-2:1994(en) Acoustics — Hearing protectors — Part 2: Estimation of effective A-weighted sound pressure levels when hearing protectors are worn

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Post time 2018-8-2 11:18:45 | Show all posts |Read mode
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ISO 4869-2:1994(en)
Acoustics — Hearing protectors — Part 2: Estimation of effective A-weighted sound pressure levels when hearing protectors are worn

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Post time 2018-8-2 11:18:46 | Show all posts
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