BS 7458-1:1991被替代
Test code for the measurement of airborne noise emitted by rotating electrical machinery. Engineering method for free-field conditions over a reflecting plane
出版：British Standards Institution
專家解讀視頻
基本信息
標準編號： BS 7458-1:1991
發布時間：1991/6/28 0:00:00
標準類別：Standard
出版單位：British Standards Institution
標準頁數：28
標準簡介
Method, of engineering grade accuracy, of measuring sound pressure levels around a machine, of calculating band power levels and of determining the A-weighted sound power level.
標準備注
? British Standards Institution 2013
Amendment notes:
AMD 6980 published 01 April 1992
替代本標準的新標準
等同采用的國際標準
ISO 1680-1:1986 - Identical
