T/CAS 546-2021 Active Group standards

T/CAS 546-2021 The criteria for the identification and evaluation of Jadeite jade and jade artifacts

Publish Date: 2021-11-15 Implement Date: 2021-11-15 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/CAS 546-2021

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: Light industry, culture, and daily necessities

ICS Name: Jewelry

Publish Date: 2021-11-15

Implement Date: 2021-11-15

Scope

Scope: This document specifies the naming, grading, appraisal, and error correction supervision of Hetian jade and Hetian jade artifacts. This document is applicable to the appraisal and evaluation of Hetian jade and Hetian jade artifacts. Main technical content: Scope: This document specifies the naming, grading, appraisal, and error correction supervision of Hetian jade and Hetian jade artifacts. This document is applicable to the appraisal and evaluation of Hetian jade and Hetian jade artifacts. Normative references: The following documents are essential for the application of this document. For any referenced document with a date, only the version dated on that date is applicable to this document. For any referenced document without a date, the latest version (including all amendment lists) is applicable to this document. GB/T 28802-2012 General Technical Requirements for Jade Carving Terms and definitions: The following terms and definitions are applicable to this document. Hetian jade and Hetian jade artifacts Hetian jade is a jade with tremolite or actinolite as the main minerals, also known as tremolite jade, abbreviated as actinolite jade. The crystal chemical formula of its main components is Ca2(Mg,Fe)5[Si4O11]2(OH)2, with a Mohs hardness of 6–7, a density of 〖"2.95" 〗_(-"0.05" )"+0.15" g/cm3, and a refractive index of 1.61–1.63 measured at a single point. Hetian jade artifacts Artifacts made from Hetian jade through processes such as gemstone design, carving, polishing, and inlaying. Jade species Jade species named after the main colors in color science and traditional colors, or those named after special causes and color-producing minerals. Craft The methods, processes, and techniques used in jade processing.