UNE-EN ISO 21968:2006
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Non-magnetic metallic coatings on metallic and non-metallic basis materials. Measurement of coating thickness. Phase sensitive eddy-current method (ISO 21968:2005)
Hardcopy , PDF
09-09-2020
Spanish, Castilian, English
05-10-2006
Foreword
1 Scope
2 Principle
3 Equipment
4 Sampling
5 Factors affecting measurement accuracy
5.1 Coating thickness
5.2 Electrical properties of the basis materials
5.3 Electrical properties of the coating materials
5.4 Basis-metal thickness
5.5 Edge effects
5.6 Surface curvature
5.7 Surface roughness
5.8 Lift-off effect
5.9 Probe pressure
5.10 Probe tilt
5.11 Temperature effects
5.12 Intermediate coatings
6 Procedure
6.1 Calibration of instruments
6.2 Determination
7 Expression of results
8 Measurement uncertainty
9 Test report
Annex A (informative) Eddy-current generation in a metallic
conductor
Annex B (normative) Test for edge effect
Bibliography
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