DIN 45645-1
Determining noise rating levels from measured data - Part 1: Environmental noise
现行
发布日期 :
2001-07-01
实施日期 :
ITU-T K.23
Types of induced noise and description of noise voltage parameters for ISDN basic user networks
现行
发布日期 :
2025-11-01
实施日期 :
DIN 45635-22
Measurement of noise emitted by machines; airborne noise emission; enveloping surface method; flares
现行
发布日期 :
2001-06-01
实施日期 :
DIN 45635-47
Measurement of noise emitted by machines; airborne noise emission; enveloping surface method; chimneys
现行
发布日期 :
2001-06-01
实施日期 :
DIN 45635-50
Measurement of noise emitted by machines; airborne noise measurement, enveloping surface method; valves
现行
发布日期 :
2001-08-01
实施日期 :
ITU-T G.228
Measurement of circuit noise in cable systems using a uniform-spectrum random noise loading
现行
发布日期 :
2025-11-01
实施日期 :
AS 1055:2018
Acoustics - Description and measurement of environmental noise
现行
发布日期 :
2018-08-24
实施日期 :