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JG/T 255-2020 (JGT 255-2020)

JG/T 255-2020_English: PDF (JGT255-2020)
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JG/T 255-2020English359 Add to Cart Days<=4 Sealed insulating glass unit with shading inside JG/T 255-2020 Valid JG/T 255-2020
JG/T 255-2020Chinese19 Add to Cart <=1-day [PDF from Chinese Authority, or Standard Committee, or Publishing House]  
 

BASIC DATA
Standard ID JG/T 255-2020 (JG/T255-2020)
Description (Translated English) Sealed insulating glass unit with shading inside
Sector / Industry Building & Construction Industry Standard (Recommended)
Classification of Chinese Standard Q33
Classification of International Standard 81.040
Word Count Estimation 18,122
Date of Issue 2020-01-13
Date of Implementation 2020-08-01
Drafting Organization China Academy of Building Research Co., Ltd., Changshu Outec Building Energy-saving Technology Co., Ltd., Jiangsu Zhongcheng Building Materials Group Co., Ltd., National Safety Glass and Quartz Glass Quality Supervision and Inspection Center, Shanghai Jianke Inspection Co., Ltd., Symec (Guangzhou) Industrial Co., Ltd. Company, South China University of Technology Building Energy Conservation Research Center, Jiangsu Academy of Building Research Co., Ltd., China Engineering Construction Standardization Association, Nanjing Ruigu Energy-saving Technology Co., Ltd., Jiangsu Saidile Energy-saving Technology Co., Ltd., Nanjing Nanyou Energy-saving Technology Co., Ltd., Hanshi Building Materials Technology Co., Ltd., Guangdong Provincial Academy of Building Research Group Co., Ltd., Wuhan Otech Energy-saving Doors and Windows Co., Ltd., Henan Longwang Tempered Vacuum Glass Co., Ltd., Rod United (Beijing) Sunlight Technology Equipment Co., Ltd., Jiangyin City Ding All new energy
Administrative Organization Standardization Technical Committee of Building Products and Components, Ministry of Housing and Urban-Rural Development
Proposing organization Institute of Standards and Norms of the Ministry of Housing and Urban-Rural Development
Issuing agency(ies) Ministry of Housing and Urban-Rural Development of the People's Republic of China

JG/T 255-2020
Sealed insulating glass unit with shading inside
ICS 81.040
Q33
The People's Republic of China Construction Industry Industry Standard
Replace JG/T 255-2009
Built-in sunshade hollow glass products
2020-01-13 release
2020-08-01 Implementation
Issued by the Ministry of Housing and Urban-Rural Development of the People's Republic of China
Table of contents
Foreword Ⅰ
1 Scope 1
2 Normative references 1
3 Terms and definitions 2
4 Classification and marking 3
5 Materials, accessories and construction 4
6 Requirements 6
7 Test method 8
8 Inspection rules 10
9 Signs, labels and accompanying documents 12
10 Packaging, transportation and storage 12
Appendix A (informative appendix) The influence of the heat-insulating frame of the built-in sun-shading hollow glass product on the thermal performance 13
Appendix B (informative appendix) Optical and thermal properties of typical hollow glass products with built-in sunshades 14
Preface
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard replaces JG/T 255-2009 "Built-in sunshade hollow glass products", compared with JG/T 255-2009, the main technical changes
as follows.
---The structural classification of the built-in sunshade has increased the combination curtain (see 4.1.2);
---The operation mode of the built-in sunshade device has been fixed (see 4.1.3);
---Modified the marking method (see 4.2, 4.2 of the.2009 edition);
---Modified the material requirements for shading devices (see 5.1.2, 5.1.3 of the.2009 edition);
---Modified the requirements of equalizing pipe (see 5.1.3, 6.1.5, 5.1.2 of the.2009 edition);
---Added requirements for fire integrity and vacuum glass (see 5.1.1, 6.1.1, 6.1.2);
---The appearance quality and operating force requirements have been revised (see 6.2, 6.5, 6.1, 6.4 of the.2009 edition);
---Modified the dew point requirements (see 6.7, 6.6 in the.2009 edition);
---Accelerated durability test is modified into water and gas seal durability performance and gas seal durability performance (see 6.9, 6.11,.2009 edition
6.8);
---Increase the initial gas content requirements (see 6.10);
---The shading coefficient is changed to the solar heat gain coefficient (see 6.13, 6.9.2 in the.2009 edition);
---The daylighting performance is modified to visible light transmittance (see 6.14, 6.10 in the.2009 edition);
---Modified the sample specifications (see 7.1, 7.1 of the.2009 edition);
---Revised the corresponding test method (see Chapter 7, Chapter 7 of the.2009 edition).
This standard was proposed by the Standard Rating Institute of the Ministry of Housing and Urban-Rural Development.
This standard is under the jurisdiction of the Technical Committee for Standardization of Building Products and Components of the Ministry of Housing and Urban-Rural Development.
Drafting organizations of this standard. China Academy of Building Research Co., Ltd., Changshu Outec Building Energy Saving Technology Co., Ltd., Jiangsu Zhongcheng Construction
Materials Group Co., Ltd., National Safety Glass and Quartz Glass Quality Supervision and Inspection Center, Shanghai Jianke Inspection Co., Ltd., Symec (Guangzhou)
Industrial Co., Ltd., Building Energy Research Center of South China University of Technology, Jiangsu Academy of Building Research Co., Ltd., China Engineering Construction Standards
Chemical Association, Nanjing Ruigu Energy-saving Technology Co., Ltd., Jiangsu Saidile Energy-saving Technology Co., Ltd., Nanjing Nanyou Energy-saving Technology Co., Ltd., Hanshi
Building Materials Technology Co., Ltd., Guangdong Academy of Building Research Group Co., Ltd., Wuhan Outec Energy-saving Doors and Windows Co., Ltd., Henan Dragon
Wang Tempered Vacuum Glass Co., Ltd., Rod United (Beijing) Sunlight Technology Equipment Co., Ltd., Jiangyin Dingzhong New Energy Materials Co., Ltd.,
Jiangyin Wuyue Building Energy-saving Technology Co., Ltd., Zhejiang Yanhe New Materials Co., Ltd., Anhui Weishate Energy-saving Doors and Windows Co., Ltd., Qingdao
China Construction United Construction Engineering Co., Ltd.
The main drafters of this standard. Wang Hongtao, Liu Huitao