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QC/T 624-2022: Rubber plugs Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure Status: Valid QC/T 624: Historical versions
QC/T 624-2022: Rubber plugs---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/QCT624-2022QC AUTOMOBILE INDUSTRY STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 43.040 CCS T 33 Replacing QC/T 624-2013 Rubber plugs 橡胶堵塞 ISSUED ON: APRIL 08, 2022 IMPLEMENTED ON: OCTOBER 01, 2022 Issued by: Ministry of Industry and Information Technology of PRC Table of ContentsForeword ... 6 1 Scope ... 7 2 Normative references ... 7 3 Terms and definitions ... 8 4 Types and sizes ... 8 5 Technical requirements ... 10 6 Test method ... 10 7 Marking and packaging ... 11 8 Product numbering ... 11 Appendix A (Normative) Diameter and thickness of thin-walled holes in vehicle body which match rubber plugs ... 12ForewordThis document was drafted, in accordance with GB/T 1.1-2020 "Directives for standardization - Part 1: Rules for the structure and drafting of standardizing documents". This document replaces QC/T 624-2013. Compared with QC/T 624-2013, the main technical changes are as follows, except editorial changes: - ADD type-A rubber plug specifications d = 14, d = 18, d = 22, d = 60 (see Table 1); - ADD the d, d1 nominal value and limit deviation of type-A rubber plug (see Table 1); - ADD the nominal values and limit deviations of a4, a5, b4, b5 of type-B rubber plug (see Table 1); - ADD the requirements for size inspection (see Table 3); - ADD the EPDM materials and basic requirements (see Table 3); - ADD the provisions on aging performance (see Table 3); - ADD the provisions on structural requirements (see Table 3); - ADD the combustion characteristics requirements (see Table 3); - ADD the requirements for prohibited substances (see Table 3); - ADD the provisions on acceptance quality limit (AQL) (see 5.4). This document was proposed by AND shall be under the jurisdiction of the National Automotive Standardization Technical Committee (SAC/TC 114). Drafting organization of this document: Automotive Engineering Research Institute of Guangzhou Automobile Group Co., Ltd. The main drafters of this document: Zhao Zhe, Yang Guang, Wang Wei, Kang Xun. This standard replaces the standard previously issued as follows: - It was first published as QC/T 624-1999 in 1999; - It was first revised as QC/T 624-2013 in 2013; - This is the second revision. Rubber plugs1 ScopeThis document specifies the type and size, technical requirements, test methods of type- A rubber plug and type-B rubber plug. This document is applicable to the type-A rubber plugs for automobiles, which have a diameter D0 of thin-walled circular holes ranging from 12 mm to 60 mm. This document is applicable to the type-B rubber plugs for automobiles, which have thin-walled rectangular holes size of 8 mm x l4 mm ~ 25 mm x 31 mm.2 Normative referencesThe contents of the following documents constitute the essential provisions of this document through normative references in the text. Among them, for dated references, only the version corresponding to the date is applicable to this document; for undated references, the latest version (including all amendments) is applicable to this document. GB/T 90.1-2002 Fasteners - Acceptance inspection GB/T 90.2-2002 Fasteners - Marking and packaging GB/T 531.1-2008 Rubber vulcanized or thermoplastic - Determination of indentation hardness - Part 1: Durometer method (Shore hardness) GB/T 3672.1-2002 Rubber - Tolerances of products - Part 1: Dimensional tolerances GB 8410 Flammability of automotive interior materials GB/T 30512 Requirements for prohibited substances on automobiles HG/T 2196 Standard classification system for rubber products in automotive application HG/T 3090 General rules of visual quality for molded and extruded rubber products QC/T 268 Extreme deviation for undeclared tolerance size of processing parts for automobile cold stamping QC/T 326 Coding rules for automotive standardized parts ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al. 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