IEC 60942 : 4.0现行
ELECTROACOUSTICS - SOUND CALIBRATORS
出版：International Electrotechnical Committee
专家解读视频
Describes the performance requirements for three classes of sound calibrator: class LS (Laboratory Standard), class 1 and class 2.
CEI EN IEC 60942 : 2018 - Identical
IS 15059 : 2018 - Identical
IS 15059 : 2018 - Identical
CEI EN IEC 60942 : 2018 - Identical
UNE-EN IEC 60942:2019 - Identical
PN-EN IEC 60942:2018-06 - Identical
