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Standard [CURRENT]

SN EN ISO 4869-4:2000-07

Acoustics - Hearing protectors - Part 4: Measurement of effective sound pressure levels for level-dependent sound-restoration ear-muffs (ISO/TR 4869-4:1998)

German title
Akustik - Gehörschützer - Teil 4: Messung der wirksamen Schalldruckpegel von Kapselgehörschützern mit pegelabhängiger elektroakustischer Übertragungseinrichtung (ISO/TR 4869-4:1998)
Publication date
2000-07
Original language
German
Pages
9

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Publication date
2000-07
Original language
German
Pages
9

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