GB/T 9288-1998
Replaced
GB/T 38821-2020
Active
National standards
GB/T 38821-2020 Hetian Yu—Testing and classification
GB/T 38821-2020 Hetian Yu—Testing and classification
Basic Information
Standard Code:
GB/T 38821-2020
Standard Type:
National standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Other non-metallic minerals
ICS Name:
Jewelry
Publish Date:
2020-06-02
Implement Date:
2020-12-01
Pages:
11 pages
Scope
This standard specifies the terms and definitions, identification, classification, naming rules, and basic contents of appraisal certificates for Hetian jade.
This standard is applicable to the identification and classification of Hetian jade raw materials and finished products.
Development Information
Referenced Standards
Related Standards
GB/T 17832-1999
Replaced
GB/T 17832-1999 Determination of silver in silver jewellery alloys—Volumetric (potentiometric) method using potassium bromide
GB/T 11887-2000
Replaced
GB/T 11887-2000 Jewellery-Fineness of precious metal alloys and designation
GB/T 18043-2000
Replaced
GB/T 18043-2000 Precious metal jewellery content non-damaged test method—X-ray fluorescence spectrometry
GB/T 18303-2001
Replaced
GB/T 18303-2001 Color grading of polished diamond by visual matching
GB/T 11886-2001
Replaced