Norm

NEN-EN-ISO 3741:2006 Ontw. en

Akoestiek - Bepaling van geluidvermogenniveaus en geluidenergieniveaus van geluidbronnen met behulp van geluiddrukmetingen - Precisiemethode voor nagalmkamers

  • Deze norm is ingetrokken sinds 02-09-2009

44,69

Over deze norm

Status Ingetrokken
Aantal pagina's 57
Commissie Akoestiek
Gepubliceerd op 01-03-2006
Taal Engels
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 requirements for which are stated, from that noise source (machinery or equipment) located in the 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 midband 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. For higher frequencies, the use of methods given in ISO 9295 is recommended.

Details

ICS-code 13.110-50
17.140.01
91.120.20
Nederlandse titel Akoestiek - Bepaling van geluidvermogenniveaus en geluidenergieniveaus van geluidbronnen met behulp van geluiddrukmetingen - Precisiemethode voor nagalmkamers
Engelse titel Acoustics - Determination of sound power levels and sound energy levels of noise sources using sound pressure - Precision methods for reverberation test rooms
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Normatieve verwijzingen
  • 98/37/EG, Machines

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