IEC 60651 Ed. 1.0被替代
Sound level meters
出版：International Electrotechnical Committee
專家解讀視頻
基本信息
標準編號： IEC 60651 Ed. 1.0
發(fā)布時間：1979/1/1 0:00:00
標準類別：Standard
出版單位：International Electrotechnical Committee
標準頁數：53
標準簡介
Deals with sound level meters of four degrees of precision, designated Types 0, 1, 2 and 3. Specifies the following characteristics: directional characteristics, frequency weighting characteristics, time-weighting, detector and indicator characteristics, sensitivity to various environments. Establishes electrical and acoustical tests to verify compliance with characteristics specified and describes the method for absolute sensitivity calibration. This standard supersedes IEC 60123 and IEC 60179.
