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GB/T 40359-2021: Timekeeping instruments - Photoluminescent deposits - Test methods and requirements
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| GB/T 40359-2021 | English | 184 |
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Timekeeping instruments - Photoluminescent deposits - Test methods and requirements
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GB/T 40359-2021
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Basic data | Standard ID | GB/T 40359-2021 (GB/T40359-2021) | | Description (Translated English) | Timekeeping instruments - Photoluminescent deposits - Test methods and requirements | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | Y11 | | Word Count Estimation | 10,177 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 40359-2021: Timekeeping instruments - Photoluminescent deposits - Test methods and requirements
---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.
Timekeeping instruments - Photoluminescent deposits - Test methods and requirements
ICS 39.040.01
CCSY11
National Standards of People's Republic of China
Photoluminescent coating for chronograph
Test methods and requirements
(ISO 17514.2004,Time-measuringinstruments-Photoluminescentdeposits-
Released on 2021-08-20
2022-03-01 implementation
State Administration of Market Supervision and Administration
Issued by the National Standardization Management Committee
Foreword
This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1.Structure and Drafting Rules of Standardization Documents"
Drafting.
The translation method used in this document is equivalent to ISO 17514.2004 "Test Methods and Requirements for Photoluminescent Coatings for Timing Instruments".
Please note that some of the contents of this document may involve patents. The issuing agency of this document is not responsible for identifying patents.
This document was proposed by the China National Light Industry Council.
This document is under the jurisdiction of the National Watch Standardization Technical Committee (SAC/TC160).
Drafting organizations of this document. Xi'an Light Industry Clock and Watch Research Institute Co., Ltd., Shenzhen Fiyta Precision Technology Co., Ltd., Shenzhen Titan
Clock Watch Technology Co., Ltd., Tianwang Electronics (Shenzhen) Co., Ltd., Zhuhai Rossini Watch Co., Ltd., Shenzhen Renault Watch Co., Ltd.,
Shenzhen Geya Watch Industry Co., Ltd., Yibo Boutique (Shenzhen) Co., Ltd., Shenzhen Duracell Precision Electronics Co., Ltd., Shandong Compas Industrial Co., Ltd.
Co., Ltd., Zhejiang Zhuoyue Electronics Co., Ltd., Zhangzhou Yingzi Watch Co., Ltd., Zhangzhou Hengli Electronics Co., Ltd., Xinyuan Optical Industry
(Shenzhen) Co., Ltd.
The main drafters of this document. Wang Yanmin, Chen Bin, Tang Haiyuan, Guo Didi, He Guangxian, Zhao Yan, Yu Ke, Zhang Kelai, Guo Xingang, Song Pengtao,
Ru Suyun, Du Hairong, Sha Linkai, Yang Li, Luo Xuzhi, Zhu Jihua, Yin Xiaoyu, Tian Zhaoke, Wang Jiamin, Wang Jiajing, Hong Xiaolan, Qiu Huazhi,
Xie Aimin, Lan Liping, Wang Liangbiao, Pan Jianhua.
Photoluminescent coating for chronograph
Test methods and requirements
1 Scope
This document specifies the test methods and related requirements for various photoluminescent coatings used in timekeeping instruments.
This document applies to photoluminescent coatings on parts of timing instruments and test samples.
2 Normative references
The contents of the following documents constitute the indispensable clauses of this document through normative references in the text. Among them, dated quotations
Only the version corresponding to that date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to
This document.
QB1988-2007 Radioluminescence regulations for timekeeping instruments (ISO 3157.1991, IDT)
3 Terms and definitions
The following terms and definitions apply to this document.
3.1
Photoluminescent deposit
A non-radioactive substance coated on a carrier that can store energy and release energy in the form of light.
3.2
Brightness
The luminous intensity per unit area for remote observers.
Note. It is expressed in Nacandela per square centimeter (ncd/cm2).
3.3
Luminance Degradation Coefficient
The relationship function of brightness decreasing with time.
3.4
Legibility
The degree of light-emitting parts can be clearly distinguished.
3.5
Legibility limit
The lowest luminous intensity of the light-emitting component can be clearly distinguished.
3.6
Luminous intensity
The intensity of light for remote observers.
Note. It is expressed by Nacandela (ncd).
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