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Norm
ÖNORM EN ISO 3741
Issue date: 2011 01 01
Acoustics - Determination of sound power levels and sound energy levels of noise sources using sound pressure - Precision methods for reverberation test rooms (ISO 3741:2010)
This International Standard specifies methods for determining the sound power level or sound energy level of
a noise source from sound pressure levels measured in a reve...
Valid
§ Legal References
Publisher:
Austrian Standards International
Format:
Digital | 71 Pages
Language:
German
| English
| Download GER/ENG
Optionally co-design standards:
ICS
This International Standard specifies methods for determining the sound power level or sound energy level of
a noise source from sound pressure levels measured in a reverberation test room. The sound power level
(or, in the case of noise bursts or transient noise emission, the sound energy level) produced by the noise
source, in frequency bands of width one-third-octave, is calculated using those measurements, including
corrections to allow for any differences between the meteorological conditions at the time and place of the test
and those corresponding to a reference characteristic impedance. Measurement and calculation procedures
are given for both a direct method and a comparison method of determining the sound power level and the
sound energy level.
In general, the frequency range of interest includes the one-third-octave bands with mid-band frequencies
from 100 Hz to 10 000 Hz. Guidelines for the application of the specified methods over an extended frequency
range in respect to lower frequencies are given in Annex E. This International Standard is not applicable to
frequency ranges above the 10 000 Hz one-third-octave band.
ÖNORM EN ISO 3741
2011 01 01
Acoustics - Determination of sound power levels and sound energy levels of noise sources using sound...
Norm
↖
ÖNORM EN ISO 3741
2009 12 01
Acoustics - Determination of sound power levels of noise sources using sound pressure - Precision me...
Norm
ÖNORM EN ISO 3741
2003 03 01
Acoustics - Determination of sound power levels of noise sources using sound pressure - Precision me...
Norm
ÖNORM EN ISO 3741
1999 11 01
Acoustics - Determination of sound power levels of noise sources using sound pressure - Precision me...
Norm
ÖNORM EN 23742
1992 07 01
Acoustics - Determination of sound power levels of noise sources - Precision methods for discrete-fr...
Norm
ÖNORM EN 23741
1992 07 01
Acoustics - Determination of sound power levels of noise sources - Precision methods for broad-band ...
Norm
ÖNORM S 5031
1977 03 01
Determination of sound power of noise sources; method in reverberation room
Norm
Norm
Issue date :
2008 06 12
Acoustics — Measurement of room acoustic parameters — Part 2: Reverberation time in ordinary rooms
Norm
Issue date :
1999 12 02
Acoustics — Requirements for the performance and calibration of reference sound sources used for the determination of sound power levels (Corrected version 2001-02)
Technische Regel
Issue date :
2008 09 30
Uncertainty of measurement — Part 3: Guide to the expression of uncertainty in measurement (GUM:1995) (Corrected version 2010-11)
Norm
Issue date :
2008 06 12
Acoustics — Measurement of room acoustic parameters — Part 2: Reverberation time in ordinary rooms
Norm
Issue date :
1996 12 19
Acoustics — Noise emitted by machinery and equipment — Rules for the drafting and presentation of a noise test code
Technische Regel
Issue date :
2008 09 30
Uncertainty of measurement — Part 3: Guide to the expression of uncertainty in measurement (GUM:1995) (Corrected version 2010-11)
Norm
Issue date :
2010 09 21
Acoustics — Determination of sound power levels and sound energy levels of noise sources using sound pressure — Precision methods for reverberation test rooms
Rechtsdokumente
Aktualisierung des Verzeichnisses der harmonisierten Europäischen Normen für Maschinen und für Sicherheitsbauteile für Maschinen
Rechtsdokumente
Kundmachung des Bundesministers für Wirtschaft, Familie und Jugend mit der das Verzeichnis der harmonisierten Europäischen Normen für Maschinen und für Sicherheitsbauteile für Maschinen aktu
Rechtsdokumente
Kundmachung des Bundesministers für Wissenschaft, Forschung und Wirtschaft, mit der das Verzeichnis der harmonisierten Europäischen Normen für Maschinen und für Sicherheitsbauteile für Masch
Rechtsdokumente
Kundmachung des Bundesministers für Wissenschaft, Forschung und Wirtschaft, mit der das Verzeichnis der harmonisierten Europäischen Normen für Maschinen und für Sicherheitsbauteile für Masch