scope:

This Standard specifies a non -destructive method for determining the thickness of anodic oxidation coatings (hereafter referred to as the "coatings") on aluminium and aluminium alloys products (hereafter referred to as the "products") using a split-beam mICroscope.

The method is applicable, in most industrial cases, to anodic oxidation coatings 10 Jim or over or 5 Jim or over in thickness when the surface is smooth.

The use of the method specified is limited by the need for the two luminous lines form the coating to be visible and distinctly separated i.e not in the case of opaque or dark-colored coatings.

NOTE 1 Problems can arise as a result of the roughness of the surface.

NOTE 2 The International Standard corresponding to this Standard and the symbol of degree of correspondence are as follows.

ISO 2128 : 2010 Anodizing aluminium and its alloys -Determination of thickness of anodic oxidation coatings - Non-destructive measurement by split-beam microscope (MOD)

The symbols which denote the degree of correspondence in the contents between the relevant International Standard and JIS are IDT (identical), MOD (modified), and NEQ (not equivalent) according to ISO/lEC Guide 21-1.