T/LZZLXH 052-2021 Gold and silver and their jewelry operation service specifications
T/LZZLXH 052-2021 Gold and silver and their jewelry operation service specifications
Basic Information
Scope
Main technical content: 5.1 Basic requirements for jewelry: The classification of precious metal jewelry shall comply with the provisions of QB/T 1689. 5.2 Appearance and craftsmanship requirements for jewelry: The appearance of jewelry shall comply with the provisions of QB/T 2062. 5.3 Material requirements for jewelry: The name, purity, and purity indication methods of precious metal materials shall comply with the provisions of GB 11887. 5.4 Quality (weight) requirements for jewelry: The quality (weight) of precious metal jewelry shall comply with the provisions of QB/T 1690. 5.5 Marking requirements for jewelry 5.5.1 Imprint: 5.5.1.1 The imprint shall be complete, clear, and accurate, and printed in a location that is easy to observe. 5.5.1.2 The imprints for gold, silver, platinum, and palladium jewelry shall be printed on the jewelry, and their content and indication methods shall comply with the provisions of GB 11887. 5.5.2 Other marking items: The marking of precious metal jewelry shall comply with the provisions of QB/T 4182.