DB51/T 2499-2018
Naming and Qualification Judgment of Filling Treatment Single Crystal Gems (English Version)

Standard No.

DB51/T 2499-2018

Language

Chinese, Available in English version

Release Date

2018

Published By

Sichuan Provincial Standard of the People's Republic of China

Latest

DB51/T 2499-2018

Scope

This standard stipulates the definition, classification, identification characteristics and identification methods of filling treatment, classification of filling treatment levels, naming and qualification determination principles of single crystal gemstones. This standard applies to natural and filled single crystal gemstone raw materials and finished products (except filled tourmaline).

DB51/T 2499-2018 history

• 2018 DB51/T 2499-2018 Naming and Qualification Judgment of Filling Treatment Single Crystal Gems