scope:

This Standard specifies a gravimetric method for determining the mass per unit area (surface density) of anodic oxidation coatings (hereafter referred to as "coatings") on products of aluminium and its alloys (hereafter referred to as "products").

The method is applicable to all oxidation coatings formed by anodizing aluminium and its alloys, cast and wrought, and is suitable for most aluminium alloys, except those in which the copper content is 6 % or greater.

NOTE 1 If the thickness is known with sufficient precision, determination of the mass per unit area (surface density) of the coatings will enable its apparent density to be calculated. Conversely, if the conditions of application of the coating and its density are known, the determination of its mass per unit area (surface density) can permit calculation of the average mass and an approximate evaluation of the thickness.

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

ISO 2106: 2011 Anodizing of aluminium and its alloys-Determination of mass per unit area (surface density) of anodic oxidation coatingsGravimetric method (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.