T/CAQI 221-2021 Active Group standards

T/CAQI 221-2021 White jade (hadejian) bangle grading

Publish Date: 2021-12-10 Implement Date: 2022-02-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: T/CAQI 221-2021

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: Architectural construction and decoration projects

ICS Name: Jewelry

Publish Date: 2021-12-10

Implement Date: 2022-02-01

Scope

Main technical content: color grading, texture grading, clarity grading, and processing technology quality grading, etc.

Development Information

Related Standards

GB/T 9288-1998 Replaced

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Publish Date: 1998-03-25

GB/T 17832-1999 Replaced

GB/T 17832-1999 Determination of silver in silver jewellery alloys—Volumetric (potentiometric) method using potassium bromide

Publish Date: 1999-08-12

GB/T 11887-2000 Replaced

GB/T 11887-2000 Jewellery－Fineness of precious metal alloys and designation

Publish Date: 2000-04-05

GB/T 18043-2000 Replaced

GB/T 18043-2000 Precious metal jewellery content non-damaged test method—X-ray fluorescence spectrometry

Publish Date: 2000-04-05

GB/T 18303-2001 Replaced

GB/T 18303-2001 Color grading of polished diamond by visual matching

Publish Date: 2001-01-21

GB/T 11886-2001 Replaced

GB/T 11886-2001 Chemical analysis—Method of silver content in jewellery

Publish Date: 2001-07-20