ISO 3160-2-2015 pdf free.Watch-cases and accessories – Gold alloy coverings – Part 2: Determination of fineness, thickness, corrosion resistance and adhesion. This part of Iso 3160 specifies methods to determine fineness, thickness, corrosion resistance and adhesion for gold alloy coverings on watch-cases and accessories, including bracelets when they are permanently attached to the case. The tests apply only to significant surfaces. This part of ISO 3160 applies to all gold alloy coverings specified in ISO 3160-1. 2 Normative references The Following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. Iso 1463, Metallic and oxide coatings — Measurement of coating thickness — Microscopical method Iso 2177, Metallic coatings — Measurement of coating thickness — C’oulometric method by anodic dissolution ISO 3 160-1. Watch-cases and accessories — Gold alloy coverings — Part 1: General requirements ISO 3497, Metallic coatings — Measurement of coating thickness — X-ray spectrometric methods ISO 3543, Metallic and non-metallic coatings — Measurement of thickness — Beta backscatter in et hod ISO 3868, Metallic and other non-organic…