GB/T 36425-2018 English PDF

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GB/T 36425-2018: Watch cases and accessories -- Colour range and designations of gold alloy coverings
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 36425-2018	199	Add to Cart	3 days	Watch cases and accessories -- Colour range and designations of gold alloy coverings	Valid

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Basic data

Standard ID: GB/T 36425-2018 (GB/T36425-2018)
Description (Translated English): Watch cases and accessories -- Colour range and designations of gold alloy coverings
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: Y11
Classification of International Standard: 39.040.10
Word Count Estimation: 10,117
Date of Issue: 2018-06-07
Date of Implementation: 2019-01-01
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 36425-2018: Watch cases and accessories -- Colour range and designations of gold alloy coverings

---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.
Watch-cases and accessories--Colour range and designations of gold alloy coverings ICS 39.040.10 Y11 National Standards of People's Republic of China Case shell and its accessories The color range and name of the gold alloy overlay Published on.2018-06-07 2019-01-01 implementation State market supervision and administration China National Standardization Administration issued

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard was proposed by the China National Light Industry Council. This standard is under the jurisdiction of the National Watch Standardization Technical Committee (SAC/TC160). This standard was drafted. Xi'an Light Industry Watch Research Institute Co., Ltd., Shenzhen FIYTA Precision Timing Manufacturing Co., Ltd., Dongguan Yi Precision Hardware Co., Ltd., Zhuhai Rossini Watch Co., Ltd., Shenzhen Titan Clock Watch Technology Co., Ltd., Shenzhen Renault Watch Industry Co., Ltd., Shengzhou Hengli Electronics Co., Ltd., Tianwang Electronics (Shenzhen) Co., Ltd., Yibo Boutique (Shenzhen) Co., Ltd. The main drafters of this standard. Jin Yingshu, Zhao Yan, Liu Dan, Liu Hong, Xiong Hansheng, Fan Li, Song Pengtao, Liu Haihua, Wang Yanmin, He Guangxian, Xie Hairong, Luo Suyun, Lan Liping, Li Yuzhong, Zhang Kelai, Yang Li, Qi Zhiping. Case shell and its accessories The color range and name of the gold alloy overlay

1 Scope

This standard specifies the color range and name of the gold alloy cover of the watch case and its accessories, the measurement method and visual ratio of the chromaticity coordinates. Color method. This standard applies to the case shell and its accessories gold alloy cover.

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 5698-2001 color terminology QB/T 1901.1 Gold-clad coverings and their accessories - Part 1 . General requirements

3 Terms and definitions

The following terms and definitions as defined in GB/T 5698-2001 and QB/T 1901.1 apply to this document. For ease of use, Some terms and definitions in GB/T 5698-2001 are listed repeatedly. 3.1 Spectral tristimulus value spectraltristimulusvalues In a three-color system, a tristimulus value that is capable of monochromatic radiation. Note. It is represented by x(λ), y(λ), z(λ) in the XYZ color system of CIE (International Commission on Illumination). [GB/T 5698-2001, definition 4.27] 3.2 XYZ color system XYZcolorimetricsystem A three-color system based on the spectral tristimulus values x(λ), y(λ), z(λ) specified in CIE 1931. [GB/T 5698-2001, definition 4.34] 3.3 Chromaticity coordinate chromaticitycoordinates The ratio of each tristimulus value to their sum. In the XYZ chromaticity system, the chromaticity coordinates x, y, and z can be calculated from the tristimulus values X, Y, and Z. x= XYZ y= XYZ z= XYZ Note. Rewrite GB/T 5698-2001, definition 4.39. ......

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