DIN EN ISO 3744 (1995-11)被替代
Determination of sound power levels of noise sources using sound pressure - Engineering method in an essentially free field over a reflecting plane (ISO 3744:1994)
出版：German Institute for Standardisation (Deutsches Institut für Normung)
专家解读视频
NF EN ISO 3744:1995 - Identical
UNI EN ISO 3744:1997 - Identical
I.S. EN ISO 3744:1996 - Identical
NBN EN ISO 3744:1996 - Identical
ONORM EN ISO 3744:1996 - Identical
BS EN ISO 3744:1995 - Identical
NEN EN ISO 3744:1995 - Identical
SN EN ISO 3744:1996 - Identical
NS EN ISO 3744 Ed. 2 (1996) - Identical
ISO 3744:1994 - Identical
UNE EN ISO 3744:1996 - Identical
SS EN ISO 3744 Ed. 1 (1995) - Identical
