BS EN 24869-1:1993现行
Acoustics. Hearing protectors. Sound attenuation of hearing protectors. Subjective method of measurement
出版：British Standards Institution
专家解读视频
Method for measuring sound attenuation at the threshold of hearing, giving consistently reproducible values which are close to the maximum attainable but are unlikely to be achieved in use.
© British Standards Institution 2013
General notes:
Formerly BS 5108:Part 1:1991.
Amendment notes:
AMD 7552 published 15 February 1993
Document identifier notes:
Formerly BS 5108:Part 1:1991.
ONORM EN 24869-1:1993 - Identical
NBN EN 24869-1:1995 - Identical
I.S. EN 24869-1:1993 - Identical
NF EN 24869-1:1993 - Identical
UNI EN 24869-1:1993 - Identical
ISO 4869-1:1990 - Identical
UNE EN 24869-1:1994 - Identical
SS EN 24869-1 Ed. 1 (1993) - Identical
