International Standard
ISO 2931:2017
Anodizing of aluminium and its alloys — Assessment of quality of sealed anodic oxidation coatings by measurement of admittance
Reference number
ISO 2931:2017
Edition 4
2017-11
International Standard
Read sample
ISO 2931:2017
70155
Published (Edition 4, 2017)
This standard was last reviewed and confirmed in 2023. Therefore this version remains current.

ISO 2931:2017

ISO 2931:2017
70155
Language
Format
CHF 42
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Abstract

ISO 2931:2017 specifies a method for assessing the quality of sealed anodic oxidation coatings on aluminium and its alloys by measurement of the admittance.

The method is applicable to anodic oxidation coatings sealed in an aqueous medium.

NOTE 1 Results obtained from anodic oxidation coatings sealed by different methods, e.g. hydrothermal sealing and cold sealing, are not necessarily comparable.

NOTE 2 Results obtained from anodic oxidation coatings on alloys containing more than 2 % silicon or 5 % manganese or 3 % magnesium are not comparable with results obtained from anodic oxidation coatings on more dilute alloys.

The method is suitable for use as a production-control test and as an acceptance test where there is agreement between the anodizer and the customer.

Any type of anodized component can be tested by the method described, provided that there is a sufficient area (a circle of diameter about 20 mm) and that the film thickness is greater than 3 µm.

General information

  •  : Published
     : 2017-11
    : International Standard confirmed [90.93]
  •  : 4
     : 5
  • ISO/TC 79/SC 2
    25.220.20 
  • RSS updates

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