
ACOUSTICS - DETERMINATION OF SOUND POWER LEVELS AND SOUND ENERGY LEVELS OF NOISE SOURCES USING SOUND PRESSURE - ENGINEERING/SURVEY METHODS FOR USE IN SITU IN A REVERBERANT ENVIRONMENT
出版:International Organization for Standardization

专家解读视频
THIS STANDARD WAS LAST REVIEWED AND CONFIRMED IN 2015. THEREFORE THIS VERSION REMAINS CURRENT. Describes a method for determining the sound power level or sound energy level of a noise source by comparing measured sound pressure levels emitted by a noise source (machinery or equipment) mounted in situ in a reverberant environment, with those from a calibrated reference sound source.
NBN ISO 3747 : 1992 - Identical
BS 4196-7(1988) : 1988 - Identical
NEN ISO 3747 : 1988 - Identical
NFS 31 067 : 1998 - Similar to
DS EN ISO 3747 : 2011 - Identical
PN EN ISO 3747 : 2011 - Identical
GOST R ISO 3747 : 2013 - Identical
AS 5339:2019 - Identical