Acoustics - Reference zero for the calibration of audiometric equipment - Part 9: Preferred test conditions for the determination of reference hearing threshold levels (ISO 389-9:2009)
German title
Akustik - Standard-Bezugspegel für die Kalibrierung audiometrischer Geräte - Teil 9: Vorzugs-Messbedingungen zur Bestimmung von Bezugs-Hörschwellenpegeln (ISO 389-9:2009)
Publication date
2009-10
Original language
German
Pages
14
Publication date
2009-10
Original language
German
Pages
14
Product information on this site:
Quick delivery via download or delivery service
Buy securely with a credit card or pay upon receipt of invoice