EN ISO 21968:2005

Non-magnetic metallic coatings on metallic and non-metallic basis materials - Measurement of coating thickness - Phase-sensitive eddy-current method (ISO 21968:2005)

Publication date:   Sep 25, 2006

General information

99.60 Withdrawal effective   Oct 16, 2019

CEN

CEN/TC 262 Metallic and other inorganic coatings, including for corrosion protection and corrosion testing of metals and alloys

European Norm

25.220.40   Metallic coatings

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Scope

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.

Life cycle

NOW

WITHDRAWN
EN ISO 21968:2005
99.60 Withdrawal effective
Oct 16, 2019

REVISED BY

PUBLISHED
EN ISO 21968:2019