BS EN ISO 2177-2005 金属覆层.覆层厚度的测量.阳极溶解库仑法

标准号：BS EN ISO 2177-2005
中文标准名称：金属覆层.覆层厚度的测量.阳*溶解库仑法
英文标准名称：Metallic coatings - Measurement of coating thickness - Coulometric method by anodic dissolution
标准类型：A29
发布日期：2005/7/6 12:00:00
实施日期：2005/7/6 12:00:00
中国标准分类号：A29
国际标准分类号：17.040.20;25.220.40
适用范围：This International Standard describes a coulometric method, by anodic dissolution, for measuring the thickness of metallic coatings. It is only applicable to conductive coatings. Typical combinations of coatings and substrates that can be tested by this method are given in Table 1. Other combinations may be tested with electrolytes in current use (see Annex A), or new electrolytes may be developed for them but, in both cases, it is necessary to verify the suitability of the complete system. This International Standard is also applicable to multi-layer systems, e.g Cu-Ni-Cr (see also 8.5). It may be used to measure the thickness of coatings applied by various means, if due account is taken of special features such as the presence of an alloy layer. In some cases, the presence and thickness of diffusion layers can also be measured. It can also be used to measure the thickness of coatings on cylindrical specimens and wires (see 8.7).