Standard

NS-EN 12373-2:1998

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This part of this European Standard specifies a gravimetric method for determining the mass per unit area (surface density) of anodic oxidation coatings on aluminium and its alloys. The method is applicable to all oxide coatings formed by anodizing aluminium and its alloys, either cast or wrought, and is suitable for most aluminium alloys except those in which the copper content is greather than 6 %. NOTE 1: A high content of copper in the alloy can lead to increased dissolution of the basis aluminium. NOTE 2: If the thickness is known with sufficient precision (from, for example, the method specified in EN 12373-3 1), determination of the mass per unit area (surface density) of the coating will enable its apparent desity to be calculated. Conversely, if the conditions of application of the coating and its density, are known, the determination of its mass per unit area (surface desity) may permit calculation of the average mass and an approximate evaluation of the thickness (see note to clauce 6). 1) See foreword.

Dokumentinformasjon

  • Standard fra SN
  • Publisert:
  • Tilbaketrukket:
  • Utgave: 1
  • Versjon: 1
  • Varetype: NAT
  • ICS 25.220.20
  • ICS 77.120.10
  • National Committee SN/K 111

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