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SR EN ISO 21968:2006
Non-magnetic metallic coatings on metallic and non-metallic basis materials - Measurement of coating thickness - Phase-sensitive eddy-current method (ISO 21968:2005)
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.
Status :
Withdrawn
Approval date : 1/31/2006
Publish date : 2/2/2006
Withdrawal date : 3/31/2020
Number of pages : 18
ICS : 25.220.40 Metallic coatings
Technical Committee : 157 - Protection of metallic matherials against corrosion
- Replaced by SR EN ISO 21968:2020