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NS EN ISO 21968 : 1ED 2005

NS EN ISO 21968 : 1ED 2005

Withdrawn

Withdrawn

A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.

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NON-MAGNETIC METALLIC COATINGS ON METALLIC AND NON-METALLIC BASIS MATERIALS - MEASUREMENT OF COATING THICKNESS - PHASE-SENSITIVE EDDY-CURRENT METHOD

Withdrawn date

01-01-2020

Superseded by

NS-EN ISO 21968:2019

Published date

12-01-2013

Publisher

Norwegian Standards (Norges Standardiseringsforbund)

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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
Norwegian Standards (Norges Standardiseringsforbund)
Status
Withdrawn
SupersededBy

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