T/GDSHJXH 005-2023 Active Group standards

T/GDSHJXH 005-2023 Maya Green Jade Grades

Publish Date: 2023-12-30 Implement Date: 2023-12-31 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: T/GDSHJXH 005-2023

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: -

ICS Name: Jewelry

Publish Date: 2023-12-30

Implement Date: 2023-12-31

Pages: 15 pages

Scope

Scope: This document specifies the terms and definitions of natural Maya green jade, grading methods and rules, grading requirements, and grading reports and certificates. This document applies to the grading of natural unmounted Maya green jade jewelry. Main technical content: 1. Scope 2. Normative reference documents 3. Terms and definitions 4. Grading methods and rules 5. Grading requirements 6. Quality of Maya green jade 7. Grading reports or certificates Appendix A (informative) Maya green jade color observation schematic diagram Appendix B (informative) Infrared spectrogram Appendix C (informative) Raman spectrogram