ISO/TC 114/SC 6 - Precious metal coverings
Precious metal coverings
General Information
ISO 16253:2017 specifies the general requirements and test methods for hard coatings obtained by vapour phase deposition processes intended to improve mainly the surface aspect and wear and corrosion resistance, and/or to offer protection against contact-allergy. It is applicable to watch-cases and accessories.
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ISO 3160-2:2015 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. ISO 3160-2:2015 applies to all gold alloy coverings specified in ISO 3160‑1.
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ISO 23160:2011 specifies tests for the evaluation of the resistance of watch cases and their bracelets to wear, scratching and impacts occurring when wearing the watch. ISO 23160:2011 is applicable mainly to complete watch cases fitted with bracelets. However, certain tests can be applied to the watch case only, to the complete or partial bracelet, or to specially prepared samples.
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This part of ISO 3160 specifies general requirements concerning gold alloy coverings. It is applicable to watch-cases and their accessories, including bracelets.
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ISO 16253:2007 specifies the general requirements and test methods for hard coatings obtained by vapour phase deposition processes, and intended to improve mainly the surface aspect and wear and corrosion resistance, and/or to offer protection against contact-allergy. It is applicable to watch-cases and accessories.
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ISO 3160-2:2003 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. ISO 3160-2:2003 applies to all gold alloy coverings specified in ISO 3160-1.
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Specifies two test methods and describes dimensions and characteristics of the standard gauge, standard coating, test methods, determination of wear, and qualitative comparison scales.
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The test methods described apply to all gold alloy coverings specified in ISO 3160-1 on watch cases and accessories, including bracelets when they are permanently attached to the case. The tests apply only to significant surfaces.
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