标准摘要
[中文适用范围]： 本文件规定了测定铝及其合金阳极氧化涂层单位面积质量（表面密度）的重量法。 该方法适用于铝及其合金（无论是铸造的还是锻造的）阳极氧化形成的所有氧化层，并且适用于大多数铝合金，但铜质量分数大于6%的铝合金除外。 注 1：合金中铜含量高会导致基材铝的溶解增加。 注2：如果以足够的精度已知厚度（例如，使用密度中规定的方法来计算）。 反之，如果涂层的应用条件及其密度已知，则可以确定其单位面积（表面）的质量。 密度）可以计算平均质量并近似评估厚度（参见第 9 条）。 [外文原描述]： This document specifies a gravimetric method for determining the mass per unit area (surface density) of anodic oxidation coatings on aluminium and its alloys. The method is applicable to all oxidation coatings formed by anodizing aluminium and its alloys, either cast or wrought, and is suitable for most aluminium alloys, except those in which the mass fraction of copper is greater than 6 %. NOTE 1 A high content of copper in the alloy can lead to increased dissolution of the substrate aluminium. NOTE 2 If the thickness is known with sufficient precision (for example, using the method specified in ISO 2128), the 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 the calculation of the average mass and an approximate evaluation of the thickness (see Clause 9).
英文名称Anodizing of aluminium and its alloys — Determination of mass per unit area (surface density) of anodic oxidation coatings — Gravimetric method