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Standard

NS-EN ISO 3744:1995

Tilbaketrukket

Merknad: Denne standarden har en ny utgave: NS-EN ISO 3744:2010

Forhåndsvisning

Rettelser og tillegg kjøpes separat.

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Omfang

This International Standard specifies a method for measuring the sound pressure levels on a measurement surface enveloping a noise source, under essentially free-field conditions near one or more reflecting planes, in order to calculate the sound power 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 of the source is calculated, leading to results which have a grade 2 accuracy. It is important that specific noise test codes for various types of equipment be established and used in accordance with this International Standard. For each type of equipment, such noise test codes will give detailed requirements on mounting, loading and operating conditions for the equipment under test as well as a selection of the measurement surface and the microphone array as specified in this International Standard. Note: The noise test code for a particular type of equipment should give detailed information on the particular surface that is selected, as the use of differently shaped measurement surfaces may yield differing estimates of the sound power level of a source.

Dokumentinformasjon

  • Standard fra SN
  • Publisert:
  • Tilbaketrukket:
  • Utgave: 2
  • Versjon: 1
  • Varetype: NAT
  • Products.Specs.pages
  • ICS 17.140.01
  • National Committee SN/K 1

Referanser i lov

EU lov:
Lov referanseRestriksjoner
89/392/EEC
98/37/EC

Produktrelasjon

Produkt livssyklus