NEN EN ISO 21968 : 2005
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
View Superseded by
NON-MAGNETIC METALLIC COATINGS ON METALLIC AND NON-METALLIC BASIS MATERIALS - MEASUREMENT OF COATING THICKNESS - PHASE-SENSIVITY EDDY-CURRENT METHOD
01-11-2019
12-01-2013
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
Specifies 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.
| DocumentType |
Standard
|
| PublisherName |
Netherlands Standards
|
| Status |
Withdrawn
|
| SupersededBy |
| Standards | Relationship |
| ONORM EN ISO 21968 : 2005 | Identical |
| UNE-EN ISO 21968:2006 | Identical |
| NF EN ISO 21968 : 2005 | Identical |
| NS EN ISO 21968 : 1ED 2005 | Identical |
| EN ISO 21968:2005 | Identical |
| DIN EN ISO 21968:2005-10 | Identical |
| UNI EN ISO 21968 : 2005 | Identical |
| BS EN ISO 21968:2005 | Identical |
| I.S. EN ISO 21968:2005 | Identical |
| ISO 21968:2005 | Identical |
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