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GB/T 39684-2020: Test method of thermal irregularities for external window opening
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 39684-2020 | English | 279 |
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Test method of thermal irregularities for external window opening
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GB/T 39684-2020
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Basic data | Standard ID | GB/T 39684-2020 (GB/T39684-2020) | | Description (Translated English) | Test method of thermal irregularities for external window opening | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | P32 | | Classification of International Standard | 91.040.01 | | Word Count Estimation | 15,147 | | Date of Issue | 2020-12-14 | | Date of Implementation | 2021-07-01 | | Quoted Standard | JGJ/T 132 | | Regulation (derived from) | National Standard Announcement No. 28 of 2020 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | | Summary | This standard specifies the requirements for thermal defect detection methods, data processing and result determination, and test reports in the area of ??the outer window openings. This standard is applicable to the detection of thermal defects in the opening area of ??the outer window of the non-transparent building envelope using the infrared thermal imaging method. | GB/T 39684-2020: Test method of thermal irregularities for external window opening---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.
(On-site testing method for thermal defects of external windows)
ICS 91:040:01
P32
National Standards of People's Republic of China
On-site testing method for thermal defects of external windows
2020-12-14 release
2021-07-01 implementation
State Administration for Market Regulation
Issued by the National Standardization Management Committee
Table of contents
Preface Ⅲ
1 Scope 1
2 Normative references 1
3 Terms and definitions 1
4 Detection 2
5 Data processing and result judgment 4
6 Test report 5
Appendix A (informative appendix) Data processing and evaluation of thermal defects in external window openings 6
Appendix B (Informative Appendix) Thermal Defect Evaluation Report Template for Outer Window Opening 11
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 Housing and Urban-Rural Development of the People's Republic of China:
This standard is under the jurisdiction of the National Standardization Technical Committee for Building Energy Efficiency (SAC/TC452):
Drafting organizations of this standard: China Academy of Building Research Co:, Ltd:, National Building Energy Efficiency Quality Supervision and Inspection Center, Linqu County Inspection and Inspection
Testing Center, Fujian Construction Engineering Quality Inspection Center Co:, Ltd:, Qinghai Construction and Building Materials Research Institute Co:, Ltd:, Zhang Gansu
Ye City Construction Management Station, China Construction Sixth Bureau Construction Development Co:, Ltd:, Beijing Construction Engineering Quality Second Inspection Institute Co:, Ltd:, Zhejiang Yicheng
Inspection Co:, Ltd:, Xinjiang Institute of Building Research (limited liability company), Guangzhou Yuchen Information Technology Co:, Ltd:, Jiangsu Construction Engineering Quality
Inspection Center Co:, Ltd:, Shanghai Zhonghe Testing Application Technology Research Institute Co:, Ltd:, Kunshan Construction Engineering Quality Inspection Center, Nanjing South
Large Engineering Testing Co:, Ltd:, Guangdong Wengu Testing Appraisal Co:, Ltd:, China Building Energy Conservation Association Building Thermal Insulation Professional Committee:
The main drafters of this standard: Yang Yuzhong, Sun Lixin, Xi Huakun, Wu Di, Li Zhongren, Pan Zhen, Wang Yong, Liang Jing, Liu Qingshan, Chen Xiangdong,
Li Wanqin, Liu Wei, Shi Yun, Zhang Hui, Wang Xintian, Shen Jiayi, Cui Yongjun, Han Yun, Liu Lichuang, Hao Zhihua, Zhao Fang, Ye Shaohua, Zhu Xiaojiao, Zhao Chu,
Qu Junhui, Chen Gang, Xu Changchun, Yu Yueyang:
On-site testing method for thermal defects of external windows
1 Scope
This standard specifies the detection, data processing, result determination, and test report of the thermal defect detection method in the area of the outer window opening
Claim:
This standard is applicable to the detection of thermal defects in the opening area of the outer window of the non-transparent building envelope by the infrared thermal imaging method:
2 Normative references
The following documents are indispensable for the application of this document: For dated reference documents, only the dated version applies to this article
Pieces: For undated references, the latest version (including all amendments) applies to this document:
JGJ/T 132 Residential Building Energy Conservation Testing Standard
3 Terms and definitions
The following terms and definitions apply to this document:
3:1
Externalwindowopening
A reserved opening for external windows is installed on the wall:
3:2
Openingside
In the detection surface, the side walls around the upper, lower, and side openings of the building’s exterior window openings:
3:3
Surrounding areaofwindowopening
The structural size of the outer window opening extends to an area of 500mm:
3:4
Testarea
It consists of the side of the hole and the area of the hole in the building envelope:
3:5
Infrared thermal imaging method infraredthermography
Using infrared thermal imaging technology, based on the principle of surface radiation temperature, the method of photographing the surface radiation temperature of the measured building:
3:6
Thermal defects thermalirregularities
When using infrared thermal imaging method to test, the temperature difference with the average temperature of the detection area is greater than 1:0K:
3:7
Gridmethod
Taking the grid as the unit, the infrared thermal image of the detection part is decomposed according to the vertical and horizontal axes, and each unit can represent the temperature of the detailed area:
Discrete processing method of image value based on degree feature:
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