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Basic dataStandard ID: GB/T 38252-2019 (GB/T38252-2019)Description (Translated English): Test method of fire-resistant integrity for building windows and doors Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: P32 Classification of International Standard: 91.060.50 Word Count Estimation: 14,170 Date of Issue: 2019-12-10 Date of Implementation: 2020-11-01 Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration GB/T 38252-2019: Test method of fire-resistant integrity for building windows and doors---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.Test method of fire-resistant integrity for building windows and doors ICS 91.060.50 P32 National Standards of People's Republic of China Test method for fire integrity of doors and windows in buildings 2019-12-10 release 2020-11-01 implementation State Administration of Market Supervision Published by the National Standardization Management Committee ContentsForeword III 1 Scope 1 2 Normative references 1 3 Terms and definitions 1 4 Ratings 1 5 Test device 2 6 Test piece and installation` 2 7 Test conditions 3 8 Test procedure 4 9 Test results and judgments 5 10 Test report 6 Appendix A (Informative) Standards for Test Specimens for Fire Integrity of Building Doors and Windows 7ForewordThis 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 Technical Committee for Standardization of Curtain Wall Doors and Windows (SAC/TC448). This standard was drafted. China Academy of Building Research Co., Ltd., China Building Standard Design and Research Institute Co., Ltd., China Construction Fund Affiliated Structure Association, Guangdong Building Research Institute Group Co., Ltd., Shanghai Jianke Inspection Co., Ltd., Fujian Building Science Research Institute Co., Ltd., Shandong Academy of Building Science, Hebei Arun Shunda Window Co., Ltd., Noto Frank Building Hardware (Beijing) Co., Ltd., Jiangyin Haida Rubber & Plastic Co., Ltd., Zhejiang Deyilong Technology Co., Ltd., Shenyang Ledao Aluminum Building System Co., Ltd., Jiangsu Jinang Fireproof Steel Profile System Co., Ltd., Shandong Jinjing Green Fireproof Glass Co., Ltd., Fei Musheng (Shanxi) Material Technology Co., Ltd., Beijing Jiayu Door And Window Curtain Wall Co., Ltd., Xi'an Gaoke Building Material Technology Co., Ltd., Heshan Hengbao Fireproof Glass Factory Co., Ltd., Langfang Chuangyuan Doors and Windows Co., Ltd., Liaoning Yuhong Doors and Windows Co., Ltd., Jiangsu Iron Anchor Glass Co., Ltd., Beijing Heping Aluminum Co., Ltd., Tian Jinshi Geredman Building Decoration Engineering Co., Ltd., Guangdong Jianlang Hardware Products Co., Ltd., Asahara Lai Guoqiang (Shandong) Hardware Technology Co., Ltd., Zhejiang Lingzhi New Material Co., Ltd., Guangdong Shijida Construction Group Co., Ltd., Guangdong Jianmei Aluminum Profile Factory (Group) Co., Ltd. Division, Beijing University of Technology, China Building Materials Inspection and Certification Group Co., Ltd., Guangzhou Construction Engineering Quality and Safety Testing Center Co., Ltd., He Beiji Century Building Material Equipment Inspection Co., Ltd., Xi'an High-tech Curtain Wall Doors and Windows Co., Ltd., Henan Keraoen Doors and Windows Co., Ltd., Jijing Doors and Windows Co., Ltd., Guangdong Chuanggao Curtain Wall Door & Window Engineering Co., Ltd., Changzhou Lantian Dacheng Decoration System Engineering Co., Ltd., Zhuhai Red Sea Curtain Wall Co., Ltd., Dongying Shengming Glass Co., Ltd., Guangzhou Baiyun Chemical Industry Co., Ltd., Wangmei Industrial Group Co., Ltd., Yuanhong Group Co., Ltd. Company, Guangzhou Jitai Chemical Co., Ltd., Guangdong Turner Jiangbo Industrial Development Co., Ltd., Sigiriya Oppie Window Hardware (Sanhe) Co., Ltd., Tianjin Meichang Curtain Wall Decoration Engineering Co., Ltd., Beijing Milan Window Energy-saving Building Materials Co., Ltd., Qingdao Wanhe Building Decoration Group, Beijing Jinglan Tiandacheng New Building Materials Co., Ltd., Shandong Huada Doors and Windows Curtain Wall Co., Ltd., Tianjin Fengli Yin Anchor Curtain Wall Engineering Co., Ltd. The main drafters of this standard. Wang Hongtao, Zhang Xichen, Gu Taichang, Liu Xuqiong, Yi Xubiao, Ma Yihong, Feng Jinghui, Chen Yiyu, Huang Nan, Lu Dongrui, Hu Naidong, Jiao Changlong, Dai Hongliang, Zhao Benjun, Zhang Mingzhang, Hu Baosheng, Wu Congzhen, Song Li, Ma Senyuan, Ren Jie, Guo Peng, Chen Wolin, Zhao Lizhang, Chang Wensheng, Wang Yinmao, Jin Yunyan, Jia Li, Du Wanming, Sun Jichao, Wang Songtao, Pan Guowei, Yu Zhilong, Sun Shibing, Song Jianwei, Liu Xiaosong, Sun Yunlong, Dou Yongzhi, Wang Longyang, Lu Houchang, Yang Cuijuan, Si Heping, Wang Liliang, Wang Fangbo, Zhang Guanqi, Yao Yongkai, Zhang Rudong, Shi Zhengjin, Li Depeng, Li Pengyan, Li Mengran, Pan Fu, Li Menghe, Zhang Yunbing, Wu Weiyun, Zhang Xuexin, Shi Qing, Qiu Ming, Yan Qiang, Zheng Heng. Test method for fire integrity of doors and windows in buildings1 ScopeThis standard specifies the terms and definitions, classifications, test devices, test pieces and installation, test strips of the fire integrity test methods for building windows and doors. Parts, test procedures, test results and judgments, test reports. This standard applies to buildings and windows that require fire integrity, but not to fire doors and windows.2 Normative referencesThe following documents are essential for the application of this document. For dated references, only the dated version applies to this article Pieces. For undated references, the latest version (including all amendments) applies to this document. GB/T 5823 terminology for building doors and windows GB/T 5907.1 Fire vocabulary Part 1. General terms GB/T 9978.1-2008 Fire resistance test methods for building components-Part 1. General requirements GB/T 26784-2011 Fire resistance test for building components GB/T 31433-2015 General technical requirements for building curtain walls, doors and windows3 terms and definitionsGB/T 5823, GB/T 5907.1 and the following terms and definitions apply to this document. 3.1 Fire-resistant integrity of windows and doors Under the test conditions specified in this standard, when a certain side of a building door or window is exposed to fire, it will prevent flame and hot gas from penetrating or backfire for a certain period The ability of a flame to appear on the surface. 3.2 Outdoor standard temperature curve outsidefirecurve Standard curve used to simulate the time-temperature relationship of fire in outdoor space. 3.3 Indoor standard temperature curve insidefirecurve Standard curve used to simulate the time-temperature relationship of indoor space fires. 3.4 Fire-resistanttime In the fire integrity test of doors and windows, the test pieces maintain the integrity fire resistance limit.4 Rating4.1 Grading indicators The fire-resistant integrity of building doors and windows is represented by E, with the fire-resistant time as a grading index, and the fire-resistant time is expressed by t, with the unit of min. 4.2 Classification requirements The fire integrity of doors and windows should be classified according to the indoor and outdoor fire-resistant surfaces. The indoor fire-resistant surface is represented by i, and the outdoor fire-resistant surface is represented by o. See Table 1 for classification and index values. Table 1 Classification of refractory integrity Grading code Fire surface E30 (i) E60 (i) E30 (o) E60 (o) Refractory time (t)/min 30≤t < 60 t≥605 Test device5.1 Test furnace In addition to the requirements of 5.2 of GB/T 9978.1-2008, the test furnace shall also meet the following requirements. a) The clearance size of the installation hole of the test piece should not be less than 3000mm × 3000mm; when the size of the test piece is smaller than the installation hole, the test piece should be Installed in the support frame and securely installed in the opening; b) It shall be possible to set and control the temperature in the furnace so that it meets the requirements of 7.1; c) The hot flue gas pressure in the furnace should be able to be controlled and monitored to meet the requirements of 7.2. 5.2 Support frame The support frame shall be installed in accordance with the provisions of 6.4 of GB/T 9978.1-2008 to meet the requirements for test specimen installation and fixing, and shall be resistant to high temperatures Insulation material for effective plugging. After the support frame is heated, there is no deformation that affects the test results, and it is kept sealed from the test furnace. 5.3 Measuring instruments 5.3.1 The temperature measuring instrument and its arrangement in the test furnace shall meet the requirements of 5.5.1 and 8.1.1 in GB/T 9978.1-2008, respectively. 5.3.2 The pressure measuring instrument and its arrangement in the test furnace shall meet the requirements of 5.5.2 and 8.2.1 in GB/T 9978.1-2008, respectively. 5.3.3 The accuracy of temperature and pressure measuring instruments shall meet the requirements of 5.6 in GB/T 9978.1-2008. 5.3.4 Ambient temperature thermocouples shall comply with 5.5.1.5 of GB/T 9978.1-2008. 5.3.5 Probes with a diameter of 6mm ± 0.1mm and a diameter of 25mm ± 0.2mm used to measure the gap through the test specimen shall comply with The provisions of 5.5.5.2 in GB/T 9978.1-2008. 5.3.6 The accuracy of the stopwatch used to measure the duration of the flame on the back surface shall not be less than 0.1s.6 Test pieces and installation6.1 Test specimen 6.1.1 The materials, construction and assembly methods used, including glass system, frame system, hardware accessories, surface decoration and cavity filling, etc. It completely represents the actual product used and is consistent with the design drawings provided. 6.1.2 During type inspection, the standard size of the test piece shall be determined according to the corresponding product standard. When product standards do not specify Refer to Appendix A for the standard specifications and dimensions of exterior windows and building exterior doors. During the engineering inspection, the representative specifications in the actual application of the project should be used. The product is used as a test piece. 6.2 Installation 6.2.1 The test specimen shall be installed in the direction that the fire-receiving surface faces the test furnace. 6.2.2 The test piece and the test furnace box shall be installed in a sealed manner. When the test piece is installed on the supporting frame, the connection part with the supporting frame shall be fireproof. The material is sealed. 6.2.3 The test specimen after installation shall be parallel to the mounting hole surface, and there shall be no abnormal stress such as twisting or bending. The test piece is not damaged and the function is intact. There should not be any stains or labels left on the surface. 6.2.4 After the test piece is installed in place on the support frame, its open position is normally switched on and off 5 times, and finally closed tightly.7 Test conditions7.1 Furnace temperature 7.1.1 Outdoor standard heating curve 7.1.1.1 For the outdoor side fire test, the furnace measured by the thermocouple in the test furnace in accordance with 4.2.2 of GB/T 26784-2011 Internal average temperature, monitor and control it according to formula (1). T = 660 (1-0.687e-0.32t-0.313e-3.88t) T0 (1) Where. T --- the average temperature in the refractory test furnace when the test is carried out at time t, the unit is degrees Celsius (° C); T0 --- The initial average temperature in the refractory test furnace before the test starts, it is required to be 5 ℃ ~ 40 ℃, the unit is Celsius (℃); t --- the time of the test, the unit is minute (min). 7.1.1.2 When the value of T0 is 20 ° C, the outdoor standard temperature rise curve is shown in Figure 1. Figure 1 Outdoor standard heating curve 7.1.2 Indoor Standard Heating Curve 7.1.2.1 For the indoor side fire test, the furnace measured by the thermocouple in the test furnace according to the provisions of 6.1.1 in GB/T 9978.1-2008 Internal average temperature, monitor and control it according to formula (2). T = 345lg (8t 1) 20 (2) Where. T --- the average temperature in the furnace, in degrees Celsius (° C) t --- time, the unit is minute (min). 7.1.2.2 The indoor standard heating curve is shown in Figure 2. Figure 2 Indoor standard heating curve 7.1.3 Furnace temperature deviation requirements When testing according to the outdoor standard heating curve and indoor standard heating curve, the deviation between the actual time temperature curve and the standard curve in the furnace should be divided Do not meet the requirements of 4.1.3 in GB/T 26784-2011 and 6.1.2 in GB/T 9978.1-2008. 7.2 Furnace pressure The furnace pressure and allowable deviation of the test furnace shall meet the requirements of 6.2 in GB/T 9978.1-2008. 7.3 Ambient conditions The environmental conditions for the fire integrity test shall meet the following requirements. a) The laboratory should have sufficient operating space; b) The laboratory shall have complete fire safety equipment configuration and insurance measures; c) The laboratory shall have effective smoke and heat extraction and smoke treatment measures to prevent harm to personnel.8 Test procedure8.1 Preparation before test Before the test starts, the following preparations should be made. a) ensure that there are no personnel unrelated to the test in the test area to prevent personal injury; b) Start the test furnace test device and read the ambient temperature, furnace temperature and furnace pressure to ensure that the sensor works normally; c) Verify the type of temperature rise curve. When the doors and windows of the building are designed for outdoor fire resistance, the outdoor standard heating curve should be adopted. Use the indoor standard heating curve; when the doors and windows of the building are designed for indoor fire resistance, the indoor standard heating curve should be used. 8.2 Test 8.2.1 Start the ignition device, monitor and record the temperature and pressure changes in the furnace. When the average temperature recorded by the thermocouple in the test furnace reaches At 50 ° C, start counting. 8.2.2 After the test is started, read the thermocouple temperature in the furnace every 10s, and ensure that the deviation between the average measured value and the standard curve meets Claim. 8.2.3 After the test starts, read the pressure value in the furnace every 10s and ensure that the pressure in the furnace meets the requirements. 8.2.4 After the test starts, observe the status of the test piece in real time and make the following records. a) The duration of the escaping flame on the back surface, and the position of the escaping flame is recorded at the same time. b) The time when a gap in the back of the test furnace penetrates into the test furnace, the gap shall meet one of the following conditions. 1) Probes with a diameter of 25mm ± 0.2mm can pass through the gap and enter the test furnace; 2) Probes with a diameter of 6mm ± 0.1mm can pass through the gap and enter the test furnace, and can move no less than the length of the gap 150mm. c) Record the location of cracks and the form of specimen failure (including panel breakage, panel fallout, frame fall, hardware fallout, and sealing material Material failure, etc.). 8.3 Termination of the test During the test, the test can be terminated if any of the following occurs. a) Continuing the test may threaten the safety of personnel or damage the equipment; b) the test piece is damaged during the test, or the judgment criteria are met; c) The client requests to suspend the test.9 Test results and judgment9.1 Judgment criteria When one of the following phenomena occurs in the test piece during the test, the fire integrity is considered to be lost. a) The duration of the flame on the back surface exceeds 10s; b) A gap penetrates into the test furnace on the back surface of the test piece. Probes with a diameter of 6mm ± 0.1mm can pass through the gap and enter the test furnace And the probe can move no less than 150mm along the length of the gap; c) A gap penetrates into the test furnace on the back surface of the test piece, and a probe with a diameter of 25mm ± 0.2mm can pass through the gap to enter the test. Inside the furnace. 9.2 Test results After the test, record the time when the specimen loses its integrity, and round it to the minute, less than 1min or exactly 1min. Discarded as refractory time. The test results indicate that the requirements in Table 2 should be met. Table 2 Test results Fire surface curve type Failure category Fire resistance time Outdoor side □ Indoor side □ Outdoor standard heating curve □ Indoor standard heating curve □ 6mm probe gap exceeded 25mm probe gap exceeded Continuous flame ×× min Note. In the form, place a check mark on the test information, and fill in the time (unit. min) in the x position. 9.3 Judgment of results Comprehensive judgment shall be made based on the refractory time and the fire-receiving surface. Designed as double-sided fire-resistant test pieces, each side shall be judged separately. judgement result It should conform to the code expression form in Table 1. If an indoor standard temperature rise curve is used for a test piece designed for outdoor fire resistance, Notice in the report. Example 1. A certain PVC open window is designed to be fire-resistant on the outdoor side. In the fire integrity test, the outdoor standard temperature curve is used on the outdoor side. Loss of integrity after exceeding the limit, the test results are recorded as. fire resistance time 35min; the test results are judged as. E30 (o). Example 2. A certain aluminum alloy interior window is designed for indoor fire resistance. In the fire integrity test, the indoor standard temperature rise curve is used on the indoor side. The continuous flame on the fire surface loses its integrity, and the test result is recorded as. fire resistance time 29min; the test result is judged as. unqualified (i). Example 3. An aluminum alloy exterior window is designed for indoor and outdoor double-sided fire resistance. In the fire integrity test, the indoor side adopts the indoor standard heating curve, and the fire is 61.8min. The integrity was lost due to continuous flames on the back surface; the outdoor standard heating curve was used on the outdoor side, and the integrity was lost due to the gap exceeding the limit at 28.0min. Test The results were recorded as follows. the fire resistance time on the indoor side was 61 min, and the fire resistance time on the outdoor side was 27 min; 9.4 Application of results After the specimen passes the fire integrity test, the test results can be applied to the same production unit, the same structure, and the same material in accordance with the following principles. Material products. a) According to the provisions of Table A.2 in GB/T 31433-2015, it is applicable to products with the same size as the test piece; b) when. 1) The length or width of the product decreases linearly; 2) The space between the vertical frame and/or horizontal frame of the product is reduced; 3) The profile thickness of mullions and/or horizontal frames is increased. 10 Test report The test report should include at least the following. a) the name and address of the testing agency, report number and date; b) Entrustment information, including the name, address, contact person, contact phone number, date and category of the entrusted unit; c) Test piece information, including basic information such as the name of the test piece, production unit, specifications, opening method, fire surface, etc. Design information such as face......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 38252-2019_English be delivered?Answer: Upon your order, we will start to translate GB/T 38252-2019_English as soon as possible, and keep you informed of the progress. 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