GB/T 9288-1998
Replaced
DB51/T 2871-2022
Active
Sichuan ProvinceLocal standards
DB51/T 2871-2022 South China ruby (squeezed-red) grading
DB51/T 2871-2022 South China ruby (squeezed-red) grading
Basic Information
Standard Code:
DB51/T 2871-2022
Standard Type:
Local standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Decorative arts and crafts
ICS Name:
Jewelry
Publish Date:
2022-02-24
Implement Date:
2022-04-01
Pages:
11 pages
Scope
This document specifies the terms and definitions, appraisal, grading elements and grading rules, quality, and the basic content of grading certificates for natural unmounted and mounted polished Nanhong (Persimmon Red) gemstones. This document is applicable to the grading of natural unmounted and mounted polished Nanhong (Persimmon Red) gemstones.
Development Information
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