Watch-cases and accessories. Gold alloy coverings - Determination of fineness, thickness, corrosion resistance and adhesion Ingestion-build-221493 Clauses 11 to 14 deal

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Watch-cases and accessories. Gold alloy coverings - Determination of fineness, thickness, corrosion resistance and adhesion Ingestion-build-221493 Clauses 11 to 14 deal1 Scope 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 31601.