Glossary I
Glossary I
The Glossary for Quality Management +++ Popular Articles: 'ISO', 'Information Technology', 'Integrity'
- ISO 389-3:1999 : Acoustics. Reference zero for the calibration of audiometric equipment. Reference equivalent Threshold force levels for pure tones
- ISO 389-4:1999 : Acoustics. Reference zero for the calibration of audiometric equipment. Reference levels for narrow-band masking noise