GB/T 36168-2018 English PDF

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GB/T 36168-2018: Turquoise -- Testing
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 36168-2018	359	Add to Cart	4 days	Turquoise -- Testing	Valid

Similar standards

GB/T 16552   GB/T 5195.12   SN/T 0481.7   GB/T 45611   GB/T 36169   

Basic data

Standard ID: GB/T 36168-2018 (GB/T36168-2018)
Description (Translated English): Turquoise -- Testing
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: D59
Classification of International Standard: 39.060
Word Count Estimation: 18,136
Date of Issue: 2018-05-14
Date of Implementation: 2018-12-01
Regulation (derived from): National Standards Announcement No. 6 of 2018
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 36168-2018: Turquoise -- Testing

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
(Turquoise identification) ICS 39.060 D59 National Standards of People's Republic of China Turquoise identification Published on.2018-05-14 2018-12-01 implementation State market supervision and administration China National Standardization Administration issued

Content

Foreword I 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 Turquoise identification 1 5 Turquoise common optimization treatment methods and identification features 3 6 Reconstructed Turquoise Identification Features 5 Appendix A (informative) Infrared absorption spectrum of turquoise 6 Appendix B (informative) Infrared Absorption Spectrum of Dipped Wax Turquoise 7 Appendix C (informative) Infrared absorption spectrum of acrylate adhesive filled with turquoise 10 Appendix D (informative) Infrared absorption spectrum of turquoise filled with adhesive containing bisphenol A epoxy resin 11 Appendix E (informative) Measure the integral area of the ν(C=O) and δ(OH-) absorption peaks. Appendix F (informative) Texture-optimized identification of turquoise. X-ray fluorescence spectral composition analysis 13 Appendix G (informative) Texture-optimized identification of turquoise. pH analysis method for extracts 14 Reference 15

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard was proposed by the Ministry of Natural Resources of the People's Republic of China This standard is under the jurisdiction of the National Jewelry and Jade Standardization Technical Committee (SAC/TC298). This standard was drafted. Anhui Institute of Geological Experiments (Hefei Mineral Resources Supervision and Testing Center of the Ministry of Land and Resources), National Jewelry and Jade Quality Supervision and Inspection Center, Songyuan Gem Co., Ltd., Maanshan City, Anhui Province, Shenzhen Safir Jewelry Co., Ltd., National Gold and Silver Products Quality Supervision and Inspection Center (Shanghai), Shandong Blue Sky Jewelry Co., Ltd. The main drafters of this standard. Dai Hui, Ke Jie, Zuo Rui, Zhang Jian, Liu Wenchang, Su Shi, Jiang Xiaoping, Liang Shuting, Deng Qian, Zhang Qing, Dai Zhengzhi, Chen Dingzhen, Lu Taijin, Li Daohe, Wang Zhuo, Zhao Hang, Cheng Xiaoyu, Liang Tie. Turquoise identification

1 Scope

This standard specifies the identification characteristics and identification methods of natural and optimized treatment of turquoise. This standard applies to the identification of turquoise.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article. Pieces. For undated references, the latest edition (including all amendments) applies to this document. GB/T 16552 Jewelry and Jade Name GB/T 16553 Jewelry and Jade Identification

3 Terms and definitions

The following terms and definitions as defined in GB/T 16552 and GB/T 16553 apply to this document. 3.1 Turquoise turquoise A cryptocrystalline mineral aggregate containing aqueous copper aluminum phosphate, the main chemical component CuAl6(PO4)4(OH)8·4H2O, may contain a small amount Kaolinite, quartz, pyrite, mica, mayenite, iron oxides and hydroxides. 3.2 Filling Fill the turquoise cracks, pores, or turquoise with materials such as waxes, resin-based adhesives, and inorganic adhesives to improve durability. And appearance. 3.3 Texture optimization textureenhancement Under the action of certain temperature, pressure and electrolyte, the texture of the turquoise surface layer and the near surface layer and the optical and mechanical properties are improved to varying degrees. quality. Also known as texture improvement or density optimization. 3.4 Dyeing dyeing A material such as a dye or a colored resin (a mixture of a dye and a resin) and a colored wax (a mixture of a dye and a wax) is infiltrated into turquoise to improve Or change its color. 3.5 Leaching solution leachingsolution A solution obtained by immersing turquoise in distilled water at a certain mass ratio and heating it in a boiling water bath at a normal pressure for a certain period of time.

4 Turquoise identification

4.1 Identification features 4.1.1 Chemical composition The theoretical chemical formula of turquoise minerals is CuAl6(PO4)4(OH)8·4H2O, in which Al3 and Fe3 can be completely isomorphic. ......

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