BS 7721:1994废止
Gas turbines and gas turbine sets. Measurement of emitted airborne noise. Engineering/survey method
出版：British Standards Institution
专家解读视频
Specifies methods for measuring the sound pressure levels on a measurement surface enveloping a source, and for calculating the sound power level produced by the source. Applies to gas turbines and gas turbine sets for: installation on board ships, or offshore installations, road and railway vehicles; industrial applications. Does not apply to gas turbines in aircraft applications. Coverage includes definitions, acoustic environment and instrumentation. Also includes detailed diagrams, tables and annexes.
© British Standards Institution 2013
Supersedes 91/76849 DC
Also numbered as ISO 10494.
Renumbered and superseded by BS ISO 10494.
(11/2003)
ISO 10494:1993 - Identical
