NF S31-062-4:2000
Acoustics - Hearing protectors - Part 4 : measurement of effective sound pressure levels for level-dependent sound-restoration ear-muffs.

Standard No.

NF S31-062-4:2000

Release Date

2000

Published By

Association Francaise de Normalisation

Latest

NF S31-062-4:2000

NF S31-062-4:2000 history

• 2000 NF S31-062-4:2000 Acoustics - Hearing protectors - Part 4 : measurement of effective sound pressure levels for level-dependent sound-restoration ear-muffs.