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What is the standard quantity of jewelry and jade?
1 and GB/T 16552 are the names of jewelry and jade, which stipulate the terms and definitions, naming rules and expression methods of jewelry and jade. This standard is applicable to the naming of jewelry and jade.

Current standard number: GB/T 16552-20 17.

English name: Gems- nomenclature

Issued by: General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China and National Standardization Administration of China.

Release date: 2017-10-14.

Implementation date: 20 18-05-0 1

2.GB/T16553 Appraisal of Jewelry and Jade stipulates the terms and definitions, appraisal methods, item selection and appraisal characteristics of jewelry and jade. This standard is applicable to the identification of jewelry and jade.

Current standard number: GB/T 16553-20 17.

English Name: Gem-Test

Issued by: General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China and National Standardization Administration of China.

Release date: 2017-10-14.

Implementation date: 20 18-05-0 1

Extended data

Other standards related to nonmetallic minerals.

GB/T 16553-2003 jewelry and jade identification

GB/T 16553-20 10 jewelry and jade appraisal

GB/T 16553-20 17 jewelry and jade identification

GB/T 16554-2003 diamond classification

GB/T 16554-20 10 diamond classification

GB/T 16554-20 17 diamond classification

Classification of jadeite jade

Methods for determination of nacre thickness-Optical coherence chromatography

Classification of transparent jadeite (colorless) in GB/T 29 155-20 12

GB/T 307 12-20 14 Provisions on Quality Measurement Tolerance of Polished Diamond

References:

People's Network-The certificate of jewelry and jade is only true but not guaranteed.