AS 2331.1.6-1990

1 - AS 2331.1.6-1990 METHODS OF TEST FOR METALLIC AND RELATED COATINGS - LOCAL THICKNESS TESTS - TAPER SECTION METHOD
1 - 1 SCOPE.
1 - 2 REFERENCED DOCUMENTS.
1 - 3 PRINCIPLE.
1 - 4 DEFINITIONS.
1 - 4.1 Linear enlargement factor
1 - 5 APPARATUS.
1 - 6 PROCEDURE.
1 - 6.1 Preparation of test pieces.
1 - 6.2 Mounting of test pieces.
2 - 6.3 Grinding and polishing.
2 - 6.4 Etching.
2 - 6.5 Measurement of apparent thickness of coating.
2 - 7 CALCULATION.
2 - 8 REPORT.
5 - APPENDIX B - FACTORS AFFECTING ACCURACY
5 - B1 ANGLE OF TAPER.
5 - B2 MOUNTING OF TEST PIECE.
5 - B3 SURFACE ROUGHNESS.

AS 2331.1.6-1990 sets out a method for measuring the local thickness of metalliccoatings on various substrates, by micrographic examination of a taper cross-section.

This Standard sets out a method for measuring the local thickness of metallic coatings on various substrates, by micrographic examination of a taper cross-section. The method is normally applicable to coatings less than 5 mm thick. At this thickness level, an error of up to 10% can be expected.NOTE: The method is suitable for use only by personnel experienced in metallography and in the use of the appropriate equipment.