T/GYSP 5-2018 Active Group standards

T/GYSP 5-2018 Sample identification: Jadeite

Publish Date: 2018-02-12 Implement Date: 2018-02-15 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/GYSP 5-2018

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: Other non-metallic minerals

ICS Name: Jewelry

Publish Date: 2018-02-12

Implement Date: 2018-02-15

Scope

Scope: This standard specifies the terms and definitions for the appraisal of jadeite samples, the purpose of submitting samples for appraisal, the appraisal items, appraisal methods, appraisal characteristics, and appraisal results. This standard applies to the appraisal of jadeite samples. Main technical content: This standard provides the content of appraisal purposes, appraisal items, appraisal methods, appraisal characteristics, and appraisal results for jadeite samples submitted to appraisal institutions, aiming to guide the appraisal work of jadeite samples. Firstly, the appraisal purposes are divided into two categories: determining whether the sample is jadeite, and determining whether the sample is natural jadeite. Then, 15 appraisal items and the requirements for selecting appraisal items are given. Next, 10 commonly used appraisal methods and a comparison table of the appraisal methods available for different appraisal items are provided. For each appraisal method, its methodological principle, instruments, applicable scope, operating steps, and result presentation are described. Then, the appraisal characteristics are given according to general characteristics, optical characteristics, physical characteristics, mineralogical characteristics, and processing characteristics. Finally, the presentation form of the appraisal conclusion, the division requirements for quality grades, and the composition and requirements of the appraisal report are given. For easy reference, a sample appraisal report is provided in the appendix.