This standard specifies terms and definitions, requirements, test methods, marking, packaging, transportation and storage of adornment of precious metal coating.
This standard is applicable to adornments with various metals (except precious metal like gold, silver, platinum, palladium and rhodium) as substrate and provided with gold, silver or rhodium coatings; adornment of precious metal coating with nonmetal as substrate may also comply with this standard.
2 Normative References
The following normative documents contain provisions which, through reference in this text, constitute provisions of this standard. For dated references, subsequent amendments to (excluding amending errors in the text), or revisions of, any of these publications do not apply. However, all parties coming to an agreement according to this standard are encouraged to study whether the latest edition of the normative document is applicable. For undated references, the latest edition of the normative document applies.
GB/T 5270 Metallic Coatings on Metallic Substrates - Electrodeposited and Chemically Deposited Coatings - Review of Methods Available for Testing Adhesion (ISO 2819:1980, IDT)
GB/T 10125 Corrosion Tests in Artificial Atmospheres - Salt Spray Test (ISO 9227:1990, EQV)
GB 11887 Jewelry - Fineness of Precious Metal Alloys and Designation (ISO 9202:1991, NEQ)
GB/T 16921 Metallic Coatings - Measurement of Coating Thickness - X-ray Spectrometric Methods (ISO 3497:2000, IDT)
QB 1131 Jewelry - the Provision of Gold Coatings Thickness (ISO 10713:1992, MOD)
QB 1132 Jewelry - the Provision of Silver Coatings Thickness
QB/T 1135 Jewelry - Measurement of Gold and Silver Coating Thickness - X-ray Fluorescence Spectrometric Methods
QB/T 1689 Terms of Precious Metal Adornment
QB/T 3831 Anti-color-change Corrosion Testing Method of the Metal Deposits and Conversion Coatings for the Light Industrial Products - Hydrogen Sulfide Test
