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Norm

ÖNORM EN ISO 3743-2

Issue date: 2009 12 01

Acoustics - Determination of sound power levels of noise sources using sound pressure - Engineering methods for small, movable sources in reverberant fields - Part 2: Methods for special reverberation test rooms (ISO 3743-2:1994)

This patt of ISO 3743 specifies a relatively simple engineering method for determining the Sound power levels of small, movable noise sources. The measurements are carri...
Withdrawn: 2020 03 15
§ Legal References
Publisher:
Austrian Standards International
Format:
Digital | 20 Pages
Language:
German | English | Download GER/ENG
Optionally co-design standards:
This patt of ISO 3743 specifies a relatively simple engineering method for determining the Sound power levels of small, movable noise sources. The measurements are carried out when the Source is installed in a specially designed room having a specified reverberation time over the frequency range of interest. The A-weighted Sound power level of the Source under test is determined from a Single Aweighted Sound pressure level measurement at each microphone Position, rather than from a summation of octave-band Ievels. This direct method eliminates the need for a reference Sound Source, but requires the use of a special reverberation test room. The direct method is based on the premise that the Sound pressure level, averaged in space and time in the test room, tan be used to determine the Sound power level emitted by the Source. The properties of the special reverberation test room are Chosen so that the room¿s influence on the Sound power output of the equipment under test is small. The number of microphone positions and Source locations required in the test room are specified. Guidelines for the design of special reverberation rooms are given in annex B.
ÖNORM EN ISO 3743-2
2020 03 15
Acoustics - Determination of sound power levels of noise sources using sound pressure - Engineering ...
Norm
ÖNORM EN ISO 3743-2
2009 12 01
Acoustics - Determination of sound power levels of noise sources using sound pressure - Engineering ...
Norm
ÖNORM EN ISO 3743-2
1997 02 01
Acoustics - Determination of sound power levels of noise sources using sound pressure - Engineering ...
Norm
ÖNORM S 5033
1978 12 01
Determination of sound power levels of noise sources; engineering methods for special reverberation ...
Norm
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Norm
ISO 3741:1988
Issue date : 1988 12 15
Acoustics — Determination of sound power levels of noise sources — Precision methods for broad-band sources in reverberation rooms
Norm
ISO 3743-1:1994
Issue date : 1994 02 17
Acoustics — Determination of sound power levels of noise sources — Engineering methods for small, movable sources in reverberant fields — Part 1: Comparison method for hard-walled test rooms
Norm
ISO 3745:1977
Issue date : 1977 05 01
Acoustics — Determination of sound power levels of noise sources — Precision methods for anechoic and semi-anechoic rooms
Norm
ISO 6926:1990
Issue date : 1990 10 11
Acoustics — Determination of sound power levels of noise sources — Requirements for the performance and calibration of reference sound sources
Norm
ISO 7574-1:1985
Issue date : 1985 12 19
Acoustics — Statistical methods for determining and verifying stated noise emission values of machinery and equipment — Part 1: General considerations and definitions
Norm
ISO 7574-4:1985
Issue date : 1985 12 19
Acoustics — Statistical methods for determining and verifying stated noise emission values of machinery and equipment — Part 4: Methods for stated values for batches of machines
Norm
ÖNORM EN ISO 3743-2
Issue date : 2020 03 15
Acoustics - Determination of sound power levels of noise sources using sound pressure - Engineering methods for small, movable sources in reverberant fields - Part 2: Methods for special reverberation test rooms (ISO 3743-2:2018)
Norm
ISO 3743-2:1994
Issue date : 1994 11 03
Acoustics — Determination of sound power levels of noise sources using sound pressure — Engineering methods for small, movable sources in reverberant fields — Part 2: Methods for special 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