ISO 3745:1977
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
View Superseded by
Acoustics — Determination of sound power levels of noise sources — Precision methods for anechoic and semi-anechoic rooms
Hardcopy , PDF
French, English
01-05-1977
19-09-2018
Specifies two laboratory methods. Gives requirements for the test room as well as the source location, operating conditions and instrumentation. Specifies techniques for obtaining an estimate of the surface sound pressure level from which the weighted sound power level of the source and the sound power level in octave or one-third octave bands may be calculated.
| DocumentType |
Standard
|
| Pages |
22
|
| PublisherName |
International Organization for Standardization
|
| Status |
Withdrawn
|
| SupersededBy |
| ASA/ANSI S12.56/ISO 3746:2011(R2025) | Acoustics - Determination of sound power levels and sound energy levels of noise sources using sound pressure - Survey method using an enveloping measurement surface over a reflecting plane (a nationally adopted international standard) |
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