NF S30-007-9*NF EN ISO 389-9:2009
Acoustics - Reference zero for the calibration of audiometric equipment - Part 9 : preferred test conditions for the determination of reference hearing threshold levels.

Standard No.

NF S30-007-9*NF EN ISO 389-9:2009

Release Date

2009

Published By

Association Francaise de Normalisation

Latest

NF S30-007-9*NF EN ISO 389-9:2009

NF S30-007-9*NF EN ISO 389-9:2009 history

• 2009 NF S30-007-9*NF EN ISO 389-9:2009 Acoustics - Reference zero for the calibration of audiometric equipment - Part 9 : preferred test conditions for the determination of reference hearing threshold levels.