
Electroacoustics - Sound calibrators
出版:Asociacion Espanola de Normalizacion

專家解讀視頻
This document specifies the performance requirements for three classes of sound calibrator: class LS (Laboratory Standard), class 1 and class 2.
IEC 60942 : 4.0 - Identical
EN IEC 60942 : 2018 - Identical
EN IEC 60942:2018 - Identical
IEC 60942:2017 - Identical