Moldova standards PDF

Acoustics - Hearing protectors - Part 2- Estimation of effective A-weighted sound pressure levels when hearing protectors are worn. Original standard ISO 4869-2-2018 in PDF full version. Additional info + preview on request

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Acoustics - Hearing protectors - Part 3- Measurement of insertion loss of ear-muff type protectors using an acoustic test fixture. Original standard ISO 4869-3-2007 in PDF full version. Additional info + preview on request

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Acoustics - Hearing protectors - Part 6- Determination of sound attenuation of active noise reduction earmuffs. Original standard ISO 4869-6-2019 in PDF full version. Additional info + preview on request

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Steel roller chains, types S and C, attachments and sprockets. Original standard ISO 487-1998 in PDF full version. Additional info + preview on request

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Acoustics - Declaration and verification of noise emission values of machinery and equipment. Original standard ISO 4871-1996 in PDF full version. Additional info + preview on request

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Acoustics - Measurement of airborne noise emitted by construction equipment intended for outdoor use - Method for determining compliance with noise limits - Erratum. Original standard ISO 4872-1978 errata 1979 in PDF full version. Additional info + preview on request

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