ISO 2177:2003 PDF

Scope: 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).

ISO 2177:2003 Referenced Document

ISO 2064:1996 Metallic and other inorganic coatings - Definitions and conventions concerning the measurement of thickness
ISO 2080 Metallic and other inorganic coatings — Surface treatment, metallic and other inorganic coatings — Vocabulary*， 2022-03-08 Update

2003 ISO 2177:2003 Metallic coatings - Measurement of coating thickness - Coulometric method by anodic dissolution
1985 ISO 2177:1985 Metallic coatings; Measurement of coating thickness; Coulometric method by anodic dissolution
1972 ISO 2177:1972 Metallic coatings — Measurement of coating thickness — Coulometric method by anodic dissolution