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Norm
ÖNORM EN ISO 21968
Issue date: 2005 10 01
Non-magnetic metallic coatings on metallic and non-metallic bases materials - Measurement of coating thickness - Phase sensitive eddy-current method (ISO 21968:2005)
This International Standard describes a method of using phase-sensitive eddy-current instruments for nondestructive
measurements of the thickness of non-magnetic metalli...
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Withdrawn
: 2020 01 01
Publisher:
Austrian Standards International
Format:
Digital | 15 Pages
Language:
German
| English
| Download GER/ENG
Currently valid:
Optionally co-design standards:
Topics
Construction products, Surface treatment, Metallic coatings
Chemistry, paper & textiles, Surface treatment, Metallic coatings
Mechanical engineering foundations & materials, Surface treatment, Metallic coatings
Mechanical engineering foundations & materials, Geometrical product specification, Properties of surfaces
This International Standard describes a method of using phase-sensitive eddy-current instruments for nondestructive
measurements of the thickness of non-magnetic metallic coatings on metallic and non-metallic basis materials, such as:
a) zinc, cadmium, copper, tin or chromium on steel;
b) 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[1], 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. When measuring metallic coatings on metallic basis materials, the product of conductivity and permeability of one of the materials should be at least a factor of 1,5 times the product of conductivity and permeability for the other material. Non-ferromagnetic materials have a relative permeability of 1.
ÖNORM EN ISO 21968
2020 01 01
Non-magnetic metallic coatings on metallic and non-metallic basis materials - Measurement of coating...
Norm
ÖNORM EN ISO 21968
2005 10 01
Non-magnetic metallic coatings on metallic and non-metallic bases materials - Measurement of coating...
Norm
↖
Norm
ÖNORM EN ISO 21968
Issue date :
2020 01 01
Non-magnetic metallic coatings on metallic and non-metallic basis materials - Measurement of coating thickness - Phase-sensitive eddy-current method (ISO 21968:2019)
Norm
ISO 21968:2005
Issue date :
2005 07 29
Non-magnetic metallic coatings on metallic and non-metallic basis materials — Measurement of coating thickness — Phase-sensitive eddy-current method