ISO 3744:1994被替代
Acoustics - Determination of sound power levels of noise sources using sound pressure - Engineering method in an essentially free field over a reflecting plane
出版：International Organization for Standardization
专家解读视频
UNE EN ISO 3744:1996 - Identical
BS EN ISO 3744:2009 - Identical
09/30201631 DC - Identical
BS ISO 3744:1994 - Identical
GB/T 3767-1996 - Equivalent
KS I ISO 3744:2002 - Identical
UNE 74034:1988 - Identical
SS ISO 3744 Ed. 2 (1995) - Identical
SS EN ISO 3744 Ed. 1 (1995) - Identical
SN EN ISO 3744:1996 - Identical
NEN EN ISO 3744:1995 - Identical
ANSI S12.54-1999 (R2004) - Equivalent
JIS B 8346:1991 - Equivalent
BS EN ISO 3744:1995 - Identical
DIN EN ISO 3744 (1995-11) - Identical
ONORM EN ISO 3744:1996 - Identical
NBN EN ISO 3744:1996 - Identical
I.S. EN ISO 3744:1996 - Identical
NBN EN 289:2004 - Identical
UNI EN ISO 3744:1997 - Identical
NF EN ISO 3744:1995 - Identical
DIN 45635-1 (1984-04) - Identical
NS EN ISO 3744 Ed. 2 (1996) - Identical
PN EN ISO 3744:1999 - Identical
