ISO 3745:2003
Withdrawn
View Superseded by
Acoustics — Determination of sound power levels of noise sources using sound pressure — Precision methods for anechoic and hemi-anechoic rooms
Hardcopy , PDF
English, French
11-25-2003
04-09-2025
ISO 3745:2003 specifies methods for measuring the sound pressure levels on a measurement surface enveloping a noise source in anechoic and hemi-anechoic rooms, in order to determine the sound power level or sound energy level produced by the noise source. It gives requirements for the test environment and instrumentation, as well as techniques for obtaining the surface sound pressure level from which the sound power level or sound energy level is calculated, leading to results which have a grade 1 accuracy.
The methods specified in ISO 3745:2003 are suitable for measurements of all types of noise.
The noise source can be a device, machine, component or sub-assembly. The maximum size of the source under test depends on the radius of the hypothetical sphere (or hemisphere) used as the enveloping measurement surface.
| Committee |
ISO/TC 43/SC 1
|
| DocumentType |
Standard
|
| Pages |
43
|
| PublisherName |
International Organization for Standardization
|
| Status |
Withdrawn
|
| SupersededBy | |
| Supersedes |
| Standards | Relationship |
| BS EN ISO 3745:2003 | Equivalent |
| UNE-EN ISO 3745:2004 | Identical |
| BS EN ISO 3745:2003 | Identical |
| UNE-EN ISO 3745:2010 | Identical |
| ANSI/ASA S12.57-2011/ISO 3747:2010(R2020) | Acoustics – Determination of sound power levels and sound energy levels of noise sources using sound pressure – Engineering/survey methods for use in situ in a reverberant environment |
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