Handlevagon
Standard

NEK IEC 60942:2003

Tilbaketrukket

Merknad: Denne standarden har en ny utgave: NEK IEC 60942:2017

Forhåndsvisning

Rettelser og tillegg kjøpes separat.

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Omfang

Specifies the performance requirements for three classes of sound calibrator: laboratory standard (class LS), class 1 and class 2. Tolerance limits are smallest for class LS and greatest for class 2 instruments. Class LS sound calibrators are normally used only in the laboratory; class 1 and class 2 are considered as sound calibrators for field use. A class 1 sound calibrator is primarily intended for use with a class 1 sound level meter and a class 2 sound calibrator primarily with a class 2 sound level meter, as specified in IEC 61672-1. The tolerance limits for class LS sound calibrators are based on the use of a laboratory standard microphone, as specified in IEC 61094-1, for demonstrations of conformance to the requirements of this standard. The tolerance limits for class 1 and class 2 sound calibrators are based on the use of a working standard microphone, as specified in IEC 61094-4, for demonstrations of conformance to the requirements of this standard. This third edition cancels and replaces the second edition published in 1997, and its amendment 1 (2000), of which it constitutes a technical revision.

Dokumentinformasjon

  • Standard fra NEK
  • Publisert:
  • Tilbaketrukket:
  • Utgave: 3.0
  • Versjon: 1
  • Varetype: NAT
  • Products.Specs.pages
  • ICS 17.140.50
  • ICS 33.100.20
  • National Committee NEK/NK29

Produktrelasjon