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GB/T 5137.1-2020: Test methods of safety glazing materials used on road vehicles - Part 1: Mechanical properties tests Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure Status: Valid GB/T 5137.1: Historical versions
Similar standardsGB/T 5137.1-2020: Test methods of safety glazing materials used on road vehicles - Part 1: Mechanical properties tests---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT5137.1-2020 NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 43.040.60 T 34 Replacing GB/T 5137.1-2002 Test methods of safety glazing materials used on road vehicles - Part 1.Mechanical properties tests (ISO 3537.2015, Road vehicles - Safety glazing materials - Mechanical tests, MOD) Issued on. MARCH 31, 2020 Implemented on. FEBRUARY 01, 2021 Issued by. State Administration for Market Regulation; Standardization Administration of the PRC. Table of ContentsForeword... 3 1 Scope... 5 2 Normative references... 5 3 Terms and definitions... 5 4 Test conditions... 5 5 Impact resistance test (227 g steel ball test)... 6 6 Penetration resistance test (2260 g steel ball test)... 10 7 Abrasion resistance test... 11 8 Fragmentation test... 18 9 Head-form impact test... 20 10 Cross-cut test... 28 11 Flexibility and folding test... 29 Annex A (Informative) Structural changes of this Part compared with ISO 3537.2015... 32 Annex B (Informative) Technical differences between this Part and ISO 3537.2015 and their causes... 34ForewordGB/T 5137 "Test methods of safety glazing materials used on road vehicles" is divided into 5 parts. - Part 1.Mechanical properties tests; - Part 2.Optical properties tests; - Part 3.Radiation, high temperature, humidity, fire and simulated weathering resistance tests; - Part 4.Determination of solar characteristic; - Part 5.Resistant-to-chemical and resistant-to-temperature changes test. This Part is Part 1 of GB/T 5137. This Part is drafted in accordance with the rules given in GB/T 1.1-2009. This Part replaces GB/T 5137.1-2002 "Test methods of safety glazing materials used on road vehicles - Part 1.Mechanical properties tests". Compared with GB/T 5137.1-2002, in addition to editorial changes, the main technical changes of this Part are as follows. - ADD the placement requirements for plastic materials before testing (see Table 1 of 5.3); - ADD the impact height requirement to the steel ball test (see Table 2 of 5.4.1, 6.4); - Modify the hardness requirements of the abrasive wheel in the abrasion resistance test (see 7.2.1; 7.2.2 of the 2002 edition); - ADD head-form impact test with deceleration measurement (see 9.2); - ADD cross-cut test (see Clause 10); - ADD flexibility and folding test (see Clause 11). This Part uses the redraft law to modify and adopt ISO 3537.2015 "Road vehicles - Safety glazing materials - Mechanical tests". Compared with ISO 3537.2015, this Part has a lot of adjustments in structure. Annex A lists the comparison table for clause-subclause number of this Part and ISO 3537.2015. There are technical differences between this Part and ISO 3537.2015.The clauses involved in these differences have been marked by a vertical single line (|) at the blank of the outer margin. Annex B gives a table of corresponding technical differences and their causes. This Part also makes the following editorial changes. - CHANGE the standard name. This Part was proposed by Ministry of Industry and Information Technology of the PRC. This Part shall be under the jurisdiction of National Technical Committee of Auto Standardization (SAC/TC 114). Drafting organizations of this Part. China Building Material Test & Certification Group Co., Ltd., Fuyao Glass Industry Group Co., Ltd., Jiangsu Tiemao Glass Co., Ltd., Shentong Science and Technology Group Co., Ltd., AGC Automotive (China) Co., Ltd., Xinyi Automobile Glass (Shenzhen) Co., Ltd., Covestro (Shanghai) Management Co., Ltd., Momentive Performance Materials (Shanghai) Trading Co., Ltd., Kangde Xin Optical Film Materials (Shanghai) Co., Ltd., Nanjing Anda Glass Technology Co., Ltd., Xinyi Auto Parts (Tianjin) Co., Ltd., Dongguan Benson Automobile Glass Co., Ltd., National Safety Glass and Quartz Glass Quality Supervision and Inspection Center. Main drafters of this Part. Huang Xiaolou, Wu Huiting, Miao Xiangyang, Wang Jingjing, Bao Ji, Du Dayan, Han Guofang, Wang Yinmao, Wang Chenglin, An Yongfeng, Yang Jianjun, Zhu Rong, Liang Hao, Wang Yao, Zhang Jianjun, Li Na, Zhang Jiangyan, Lu Can, Yan Min. The previous editions of the standard replaced by this Part were released as follows. - GB 5137.1-1985, GB/T 5137.1-1996, GB/T 5137.1-2002. Test methods of safety glazing materials used on road vehicles - Part 1.Mechanical properties tests1 ScopeThis Part of GB/T 5137 specifies the test methods for impact resistance test, penetration resistance test, abrasion resistance test, fragmentation test, head- form impact test, cross-cut test, and flexibility and folding test of safety glazing materials used on road vehicles.2 Normative referencesThe following documents are indispensable for the application of this document. For the dated references, only the editions with the dates indicated are applicable to this document. For the undated references, the latest edition (including all the amendments) are applicable to this document. QC/T 1119 Road vehicles - Glazing materials - Terminology (QC/T 1119- 2019, ISO 3536.2016, MOD) ISO 6487 Road vehicles - Measurement techniques in impact tests - Instrumentation3 Terms and definitionsFor the purposes of this document, the terms and definitions given in QC/T 1119 apply.4 Test conditionsUnless otherwise specified, the tests shall be carried out under the following ambient conditions.5 Impact resistance test (227 g steel ball test)Means for dropping the ball freely from a height to be specified. When the impact height is less than or equal to 6 m, the impact point of the steel ball shall be within a circle with a radius of 25 mm at the center of the sample. The lower frame is above the steel box. The steel box is welded by 12 mm thick steel bottom sheet and 10 mm thick side sheet; is placed on the ground, which is cushioned with a rubber sheet with thickness 3 mm±0.5 mm and hardness Shore A (50±5). After the impact, evaluate the damage form and degree of the sample. If there is a requirement for the mass of the detached fragments on the reverse side of the impact surface, it shall weigh and record the total mass of the detached fragments.6 Penetration resistance test (2260 g steel ball test)USE the special flat test piece prepared under the same material and process conditions as the product or the test piece cut from the flattest part of the product AS the sample. The size is mm× mm. When applicable, the product can also be a sample. PLACE the sample in the supporting fixture as described in 5.2.3.The impact plane of the sample shall be perpendicular, within 3°, to the incident direction of the ball.7 Abrasion resistance testThe abrasion test shall be performed on the surface of the sample representing the outer surface of the vehicle glazing material. For the plastic material, the test of inner surface shall be carried out. See Table 4 for test surface and number of grinding revolutions. MOUNT the sample on the abraser turntable platform with the side to be abraded facing up. SECURE using the clamp plate and nut.8 Fragmentation testSee Figure 4 for the location of the impact points. Point 1.At the projection point of the geometric center of the sample on the glazing material surface.9 Head-form impact testMeans for dropping the head-form freely from a height to be specified. During the impact, the head-form shall fall within a circle with a radius of 40 mm at the center of the product. Evaluate the minimum strength and broken state of plastic or glass materials under the impact of large blunt objects at normal temperature; USE the calculated HIC (Head Injury Criterion) value to assess the risk of craniocerebral injury. ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al. 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