Standard

NS-EN ISO 21968:2005

Tilbaketrukket

Merknad: Denne standarden har en ny utgave: NS-EN ISO 21968:2019

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Omfang

ISO 21968:2005 describes a method of using phase-sensitive eddy-current instruments for non-destructive measurements of the thickness of non-magnetic metallic coatings on metallic and non-metallic basis materials such as zinc, cadmium, copper, tin or chromium on steel, as well as copper or silver on composite materials.The phase-sensitive method can be applied without thickness errors to smaller surface areas and to stronger surface curvatures than the amplitude-sensitive eddy-current method described in ISO 2360, and is less affected by the magnetic properties of the basis material. However, the phase-sensitive method is more affected by the electrical properties of the coating materials.

Dokumentinformasjon

  • Standard fra SN
  • Publisert:
  • Tilbaketrukket:
  • Utgave: 2005-07
  • Versjon: 1
  • Varetype: NAT
  • ICS 25.220.40
  • National Committee SN/K 51

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