
INDUSTRIAL FANS - DETERMINATION OF FAN SOUND POWER LEVELS UNDER STANDARDIZED LABORATORY CONDITIONS - PART 3: ENVELOPING SURFACE METHODS
出版:International Organization for Standardization

專家解讀視頻
Applicable to industrial fans as defined in ISO 5801 and ISO 13349.
NF ISO 13347-3 : 2004 AMD 1 2011 - Identical
BS ISO 13347-3 : 2004 - Identical
NEN ISO 13347-3 : 2004 AMD 1 2010 - Identical
UNI ISO 13347-3 : 2009 - Identical
DS ISO 13347-3 : 2004 - Identical
BS 848-2.3(2004) : 2004 - Identical
BS 848-2.3(2004) : 2004 - Identical
NEN ISO 13347-3 : 2004 AMD 1 2010 - Identical
NF ISO 13347-3 : 2004 AMD 1 2011 - Identical
DS ISO 13347-3 : 2004 - Identical
BS ISO 13347-3 : 2004 - Identical
UNI ISO 13347-3 : 2009 - Identical