QB/T 2997-2008 (English Version) PDF

Scope: This standard specifies the terms and definitions, requirements, test methods and markings, packaging, transportation and storage of precious metal covered jewelry. This standard applies to jewelry with gold covering series, silver covering series and rhodium covering series made of various metals other than precious metals (gold, silver, platinum, palladium, rhodium, etc.) as base materials. Precious metal-covered jewelry based on non-metal materials may refer to this standard.

QB/T 2997-2008 Referenced Document

GB 11887 Jewellery.Fineness of precious metal alloys and designation*， 2012-11-05 Update
GB/T 10125 Corrosion tests in artificial atmospheres—Salt spray tests*， 2021-08-20 Update
GB/T 16921 Metallic coatings.Measurement of coating thickness.X-ray spectrometric methods
GB/T 5270 Metallic coatings on metallic substrates-Electrodeposited and chemically deposited coatings-Review of methods available for testing adhesion
QB 1131 Jewellery-the provision of gold coatings tickness
QB 1132 Jewellery-the provision of silver coatings tickness
QB/T 1135 Jewellery Measurement of gold and silver coating tickness X-ray fluorescence spectrometric methods
QB/T 1689 Precious metal jewelry terminology*， 2021-12-02 Update
QB/T 3831 Anti-color change corrosion testing method of the metal deposits and conversion coatings of the light industrial products.Hydrogen sulfide test