
ACOUSTICS - MEASUREMENT OF AIRBORNE NOISE EMITTED BY COMPUTER AND BUSINESS EQUIPMENT
出版:German Institute for Standardisation (Deutsches Institut für Normung)

专家解读视频
EN 27779 : 1991 - Identical
SNV DIN EN 27779 : 1991 - Identical
ISO 7779 : 2010 - Corresponds
SNV NF EN 27779 : 1992 - Identical