Acoustics - Reference zero for the calibration of audiometric equipment - Part 9: preferred test conditions for the determination of reference hearing threshold levels
German title
Akustik - Standard-Bezugspegel für die Kalibrierung audiometrischer Geräte - Teil 9: Vorzugs-Messbedingungen zur Bestimmung von Bezugs-Hörschwellenpegeln
Publication date
2009-08-01
Original language
French
Pages
16
Publication date
2009-08-01
Original language
French
Pages
16
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