SNV DIN EN 27779:1991現(xiàn)行
Acoustics; Measurement Of Airborne Noise Emitted By Computer And Business Equipment
出版：Swiss Standards
專家解讀視頻
Specifies the airborne noise emitted by computer and business equipment and determination of sound power level using the enveloping surface method ("free-field" method) for prescribed measuring conditions.
ISO 7779:1999 - Identical
DIN EN 27779 (1991-11) - Identical
DIN EN 27779 : 1991 - Identical
NFS 31 072 : LATEST - Identical
DIN EN 27779 E : 1991 - Identical
DIN EN 27779 : 1991 - Identical
