T/CMTBA 2004-2020 Active Group standards

T/CMTBA 2004-2020 Cultivating diamonds

Publish Date: 2020-12-01 Implement Date: 2021-01-01 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/CMTBA 2004-2020

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: Mechanical

ICS Name: Abrasives and grinding tools

Publish Date: 2020-12-01

Implement Date: 2021-01-01

Scope

Main technical content: This standard specifies the terms and definitions of cultured diamonds, identification, quality representation and weighing, color grading, clarity grading, cut grading, and grading certificates. This standard is applicable to gem-quality cultured diamonds.