ISO 4869-1:1990现行
Acoustics - Hearing protectors Part 1: Subjective method for the measurement of sound attenuation
出版：International Organization for Standardization
专家解读视频
UNI EN 24869-1:1993 - Equivalent
BS 5108-1:1991 - Identical
I.S. EN 24869-1:1993 - Identical
BS EN 24869-1 - Identical
GB/T 7584-1987 - Identical
KS I ISO 4869-1:2014 - Identical
UNE 74011-1:1991 - Identical
KS P ISO 4869-1:2003 - Identical
BS EN 24869-1:1993 - Identical
GB/T 7584.1-2004 - Identical
SNV NF EN 24869-1:1993 - Identical
SNV DIN ISO 4869-1:1991 - Identical
NEN ISO 4869-1:1997 - Identical
ONORM EN 24869-1:1993 - Identical
DIN ISO 4869-1 (1991-10) - Identical
NS ISO 4869-1 Ed. 1 (1992) - Identical
PN EN 24869-1:1999 - Identical
UNE EN 24869-1:1994 - Identical
