GB/T 18743.2-2022 English PDFUS$159.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 18743.2-2022: Thermoplastics pipes - Determination of pendulum impact strength by the Charpy method - Part 2: Test condition for pipes of various materials Status: Valid
Basic dataStandard ID: GB/T 18743.2-2022 (GB/T18743.2-2022)Description (Translated English): Thermoplastics pipes - Determination of pendulum impact strength by the Charpy method - Part 2: Test condition for pipes of various materials Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: G33 Word Count Estimation: 7,732 Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration GB/T 18743.2-2022: Thermoplastics pipes - Determination of pendulum impact strength by the Charpy method - Part 2: Test condition for pipes of various materials---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. Thermoplastics pipes -- Determination of pendulum impact strength by the Charpy method -- Part 2.Test condition for pipes of various materials ICS 84.140.30 CCSG33 National Standards of People's Republic of China Partially replaces GB/T 18743-2002 Determination of Impact Strength of Simply Supported Beams of Thermoplastic Pipes Part 2.Test conditions for pipes of different materials Published on 2022-04-15 2022-11-01 Implementation State Administration for Market Regulation Released by the National Standardization Administration forewordThis document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1.Structure and Drafting Rules of Standardization Documents" Drafting. This document is part 2 of GB/T 18743 "Determination of Impact Strength of Simply Supported Beams of Thermoplastic Pipes". GB/T 18743 has The following sections have been published. --- Part 1.General test methods; --- Part 2.Test conditions for pipes of different materials. This document and Part 1 of GB/T 18743 replace GB/T 18743-2002 "Simply Supported Thermoplastic Pipes for Fluid Transport" Compared with GB/T 18743-2002, in addition to structural adjustment and editorial changes, the main technical changes are as follows. a) Changed the scope of application (see Chapter 1, Chapter 1 of the.2002 edition); b) terms and definitions are added (see Chapter 3); c) Added test conditions for polyethylene (PE) pipes (see 4.1 and 4.2); d) Added Method A, Method B and Method C (see 4.1, 4.2 and 4.3). Please note that some content of this document may be patented. The issuing agency of this document assumes no responsibility for identifying patents. This document is proposed by China National Light Industry Federation. This document is under the jurisdiction of the National Standardization Technical Committee of Plastic Products (SAC/TC48). This document is drafted by. Shanghai Baidie Pipe Technology Co., Ltd., Beijing Building Materials Inspection and Research Institute Co., Ltd., Yonggao Co., Ltd. Co., Ltd., Chengde Jinjian Testing Instrument Co., Ltd., SABIC (China) R&D Co., Ltd., Guangdong Liansu Technology Industrial Co., Ltd., Akcome Enterprise Group (Shanghai) Co., Ltd., Zhonglan Chenguang Chengdu Testing Technology Co., Ltd., Yada Plastic Products Co., Ltd., Sinopec Beijing Chemical Industry Co., Ltd. Beijing Research Institute of Chemical Technology, Beijing Technology and Business University, Petrochemical Research Institute of China National Petroleum Corporation, Baolu Seven Star Pipe Industry Co., Ltd. The main drafters of this document. Chai Gang, Li Yanjun, Huang Jian, Zhang Xiangling, Cui Shengming, Sun Xiuhui, Qiu Qiang, Zhang Yanjun, Wu Yuan, Li Yu'e, Xu Haiyun, Xiang Aimin, Zhang Huaizhi, Xu Hongyue, Xie Jianling, Tang Hui. The previous versions of this document and its superseded documents are as follows. ---First published in.2002 as GB/T 18743-2002; ---This is the first revision.IntroductionGB/T 18743 "Determination of Impact Strength of Simply Supported Beams of Thermoplastic Pipes" combined with the actual production and application of plastic pipe products in my country Grass, including general test methods and test conditions for pipes of different materials. --- Part 1.General test methods. The main contents include principles, equipment, samples, state adjustment and pretreatment, test procedures, and results It specifies the general test method for the determination of the impact strength of simply supported beams of thermoplastic pipes. --- Part 2.Test conditions for pipes of different materials. The main contents include the test conditions, specifying the different materials for thermoplastic pipes Test conditions for the determination of the impact strength of simply supported beams. Determination of Impact Strength of Simply Supported Beams of Thermoplastic Pipes Part 2.Test conditions for pipes of different materials1 ScopeThis document specifies the test conditions for the determination of the impact strength of simply supported beams of thermoplastic pipes of different materials. This document applies to the determination of the impact strength of simply supported beams of thermoplastic pipes.2 Normative referencesThe contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, dated citations documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to this document. GB/T 18743.1-2022 Determination of Impact Strength of Simply Supported Beams of Thermoplastic Pipes Part 1.General Test Methods GB/T 19278-2018 General terms and definitions for thermoplastic pipes, fittings and valves3 Terms and DefinitionsTerms and definitions defined in GB/T 19278-2018 and GB/T 18743.1-2022 apply to this document.4 Test conditions4.1 Method A 4.1.1 The test conditions of homopolypropylene (PP-H), copolymerized polypropylene (PP-B, PP-R, PP-RCT) and polyethylene (PE) pipes are shown in Table 1. Table 1 Test conditions of PP-H, PP-B, PP-R, PP-RCT and PE pipes Tube size dn/mm en/mm Specimen Typea Impact Method pendulum punch hit energy Pretreatment temperature Tc/℃ PP-H PP-B, PP-R, PP-RCT, PE dn≤25 25< dn< 75 25< dn< 75 75≤dn< 160 75≤dn< 160 dn≥160 all en≤4.2 4.2< en≤10.5 en≤4.2 4.2< en≤10.5 all 2 or 4 3 or 4 3 or 5 GB/T 18743.1-2022 Figure 1 GB/T 18743.1-2022 Figure 2 GB/T 18743.1-2022 Figure 1 GB/T 18743.1-2022 Figure 2 or Figure 3 GB/T 18743.1-2022 Figure 1 or Figure 3 GB/T 18743.1-2022 Figure 1 or Figure 3 15 23±2 0±2 Note. Method B or Method C can be used for pipes with wall thickness greater than 10.5mm. a Meet the requirements of Table 1 in GB/T 18743.1-2022. ...... |
