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GB/T 13203-2021: Test methods for verifying capabilities of motorcycle tyres 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 13203: Historical versions
Similar standardsGB/T 13203-2021: Test methods for verifying capabilities of motorcycle tyres---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/GBT13203-2021GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 83.160.10 CCS G 41 Replacing GB/T 13203-2014 Test methods for verifying capabilities of motorcycles tyres (ISO 10231.2003, Motorcycle tyres - Test methods for verifying tyre capabilities, MOD) Issued on. AUGUST 20, 2021 Implemented on. MARCH 01, 2022 Issued by. State Administration for Market Regulation; Standardization Administration of PRC. Table of ContentsForeword... 3 1 Scope... 5 2 Normative references... 5 3 Terms and definitions... 5 4 Test equipment and accuracy... 6 5 Test method... 7 6 Judgment rules... 14 7 Test report... 14 Appendix A (Informative) Structural changes of this document compared with ISO 10231.2003... 17 Appendix B (Informative) Technical differences between this document and ISO 10231.2003, as well as their reasons... 18 Appendix C (Normative) Closed curve of tyre profile in centrifugal swelling test ... 23 Appendix D (Normative) Methods of calculating the maximum operating centrifugal radius at various maximum driving speeds... 24 Appendix E (Normative) High-speed test conditions for tyres with a maximum speed exceeding 240 km/h... 25ForewordThis document was drafted in accordance with the requirements of GB/T 1.1- 2020 "Directives for standardization - Part 1.Rules for the structure and drafting of standardizing documents". This document replaces GB/T 13203-2014 "Test methods for verifying capabilities of motorcycles tyres". Compared with GB/T 13203-2014, the main technical changes are as follows. - ADD and IMPROVE the high-speed test condition parameters of motorcycle tyres, which have a maximum speed of more than 240 km/h (see Table 2 and Table 3; Table 2 and Table 3 of the 2014 edition). Correspondingly ADD the instructions for setting conditions for high-speed performance tests for tyres, which have marked or designated speed grades, by the tyre manufacturer, in this type of tyre (see Appendix E.2; Appendix E.2 of the 2014 edition); - ADD the test condition parameters of the speed grade code K, in the applicable scope of the high-speed performance test method (see Table 4; Table 4 of the 2014 Edition). This document uses the redrafting method, to modify and adopt ISO 10231.2003 "Motorcycle tyres - Test methods for verifying tyre capabilities". Compared with ISO 10231.2003, this document has many adjustments in structure. Appendix A lists the comparison of the article number, between this document and ISO 10231.2003. Compared with ISO 10231.2003, there are technical differences between this document. The terms of these differences have been marked by a vertical single line (|), on the outer margin of the document. Appendix B gives a list of the corresponding technical differences and their reasons. This document has also made the following editorial changes. - CHANGE the standard name to "Test methods for verifying capabilities of motorcycles tyres"; - MODIFY the description of the content of the test steps in E.1; - DELETE the references of ISO 10231.2003. 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 Petroleum and Chemical Industry Federation. This document shall be under the jurisdiction of the National Tyre and Rim Standardization Technical Committee (SAC/TC 19). Drafting organizations of this document. Guangzhou Rubber Industrial Products Research Institute Co., Ltd., Xiamen Zhengxin Rubber Industry Co., Ltd., Zhongce Rubber Group Co., Ltd., Guangzhou Diamond Tyre Co., Ltd., Tianjin Wanda Tyre Group Co., Ltd., Pirelli Tyre Co., Ltd., Jiangxi Deyou Technology Co., Ltd. The main drafters of this document. Zhu Hongsuo, Ning Jun, He Mengqun, Chen Jianming, Sun Quanxi, Ye Fan, Cao Bin, Yu Zhenjiang, Niu Fuxiang, Lin Jianhao. This standard replaces the standard previously issued as follows. - GB/T13203-1991; - GB/T 13203-2007; when revised, it has incorporated GB/T 13203-1991 "Strength test for motorcycle tyres", GB/T 13204-2002 "Test method of high-speed performance for motorcycle tyres - Drum method" (GB/T 13204- 2002 "Test method of high speed performance for motorcycle tyres - Drum method" has been released as follows. GB/T 13204-1991), GB/T 13205- 1991 "Endurance test for motorcycle tyres (Drum method)"; - GB/T 13203-2014; - This is the third revision. Test methods for verifying capabilities of motorcycles tyres1 ScopeThis document specifies terms and definitions, test equipment and accuracy, test methods, judgment rules and test reports, for the performance test of motorcycles tyres. This document includes the strength performance test method, durability test method, high speed performance test method, centrifugal swelling test method, of motorcycle tyres.2 Normative referencesThe provisions in following documents become the provisions of this Standard through reference in this Standard. For the dated documents, only the versions with the dates indicated are applicable to this document; for the undated documents, only the latest version (including all the amendments) is applicable to this standard. GB 518 Motorcycle tyres GB/T 2983 Series of motorcycle tyres3 Terms and definitionsThe terms and definitions, as defined in GB/T 6326, as well as the following terms and definitions, apply to this document. The maximum load rating of the tyre, at the highest speed.4 Test equipment and accuracyFor the tyre centrifugal swelling test, when measuring the vertical part of the inner flange of the rim, directly above the bead seat and the bead seat fillet, THEN, the test shaft and rim shall be controlled, to ensure that the radial deviation is less than ±0.5 mm AND the lateral deviation is less than ±0.5 mm.5 Test methodStart the combination to accelerate uninterruptedly; it shall be able to reach the maximum speed capability of the tyre, within 5 minutes. The rotation of the tyre can EITHER be driven by a motor, which acts on the test shaft, OR driven by pressing the tyre on the test drum (see 4.1).6 Judgment rulesWhen the tyre is running at maximum speed, its profile shall not exceed the closed curve, which is defined in Figure C.1, as relative to the tyre axis (that is, the XX and YY axes of the curve shall coincide with the axis of the plotted tyre profile).7 Test reportThe test report shall include at least the following. ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al. 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