QB/T 5137-2017 PDF EnglishUS$150.00 · In stock · Download in 9 seconds
QB/T 5137-2017: Polyurethane Resin for Garment Synthetic Leather Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure Status: Valid
QB/T 5137-2017: Polyurethane Resin for Garment Synthetic Leather---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/QBT5137-2017LIGHT INDUSTRY STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 83.040.99 Classification No.: Y 47 Record No.: 59698-2017 Polyurethane Resin for Garment Synthetic Leather ISSUED ON: JULY 07, 2017 IMPLEMENTED ON: JANUARY 01, 2018 Issued by: Ministry of Industry and Information Technology of PRC Table of ContentsForeword ... 3 1 Scope ... 4 2 Normative References ... 4 3 Classification and Specification ... 5 4 Requirements ... 5 5 Test Methods ... 7 6 Inspection Rules ... 9 7 Mark, Package, Transport and Storage ... 10 Appendix A (Normative) Type-A Product Specimen Preparation ... 12 Appendix B (Normative) Type-B Product Specimen Preparation ... 14 Polyurethane Resin for Garment Synthetic Leather1 ScopeThis Standard specifies the classification, requirements, test methods, inspection rules, mark, package, transportation and storage of polyurethane resin for garment synthetic leather. This Standard is applicable to polyurethane resin for garment synthetic leather with certain solid content formed through the chemical reaction and physical mixing of the raw and auxiliary materials, such as isocyanate, polyols, solvents, additives and the like.2 Normative ReferencesThe following documents are essential to the application of this document. 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) are applicable to this document. GB 190 Packing Symbol of Dangerous Goods GB/T 2918-1998 Plastics -Standard Atmospheres for Conditioning and Testing GB/T 4857.1 Packaging – Complete, Filled Transport packages – Identification of Parts when Testing GB/T 6678 General Principles for Sampling Chemical Products GB/T 6680 General Rules for Sampling Liquid Chemical Products GB/T 7193-2008 Test Methods for Unsaturated Polyester Resins GB 12463 General Specifications for Transport Packages of Dangerous Goods HG/T 3052-2008 Rubber or Plastics – Coated Fabrics – Determination of Coating Adhesion QB/T 2714-2005 Leather – Physical and Mechanical Tests – Determination of Flex Resistance 5.5.2 Test procedures and results It shall be carried out as per the provisions of 5.5 in QB/T 4197-2011. 5.6 Peeling load 5.6.1 Specimen preparation The specimen shall be prepared as per the requirements of Appendix A; specimen size is 200mm×30mm; the number of the specimens shall be 6 pieces. 5.6.2 Test procedures and results The test shall be carried out as per the method specified in HG/T 3052-2008; paste the 6 pieces of specimens into each group of 2 pieces. Place them into a constant temperature oven at (135±5) °C; standing for 30min then take them out, cool off to the room temperature. Test separation speed is (200±20) mm/min. Record the maximum peeling load of the specimen; take the arithmetic mean of the test results of the three groups of specimens, accurate to 1N. 5.7 Change rate of hydrolysis resistance peeling load 5.7.1 Specimen preparation The specimen shall be prepared as per the requirements of Appendix A; the specimen size is of 200mm×30mm; the number of specimens is 6 pieces. 5.7.2 Test procedures Test shall be carried out as per the provisions of 6.1 in QB/T 4671-2014; the damp- heat treatment time is 14d; test the peeling load before and after the damp-heat treatment as per the provisions of 5.6. 5.7.3 Test results It shall be carried out as per the provisions of 5.9.2 in QB/T 4908-2016. 5.8 Flex resistance 5.8.1 Specimen preparation The specimen shall be prepared as per the requirements of Appendix B. The test size of the finished leather shall be 60mm×60mm; the number of specimens shall be no less than 3 pieces. 5.8.2 Test procedures and results Test shall be carried out as per the provisions of QB/T 2714-2005. The test mode is in to be unqualified. 6.3 Exit-factory inspection The exit-factory inspection items shall be all items in 4.1, 4.2, 4.3. 6.4 Type inspection The type inspection shall include all items in Clause 4. The type inspection shall be carried out in one of the following cases: a) When new products or old products are transferred the factory for stereotyping appraisement; b) When there are significant changes in place of production, formula, raw materials, and process after the formal production; c) When for normal production, conduct once every 12 months; d) When production is restored after long-term shutdown for more than 6 months; e) When there is big difference between the exit-factory inspection results and the previous type inspection; f) When the state quality supervision department proposes the requirements.7 Mark, Package, Transport and Storage7.1 Mark The marking position of product packaging container shall be implemented as per the requirements of GB/T 4857.1. The outer package shall contain at least the following information: a) Product name; b) Production organization and address; c) Production date and production batch number; d) Shelf life (or effectiveness date); e) Net content; f) According to the requirements of GB 190, obviously mark the flammable liquids and hazardous chemicals; ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al. Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of English version of QB/T 5137-2017 be delivered?Answer: The full copy PDF of English version of QB/T 5137-2017 can be downloaded in 9 seconds, and it will also be emailed to you in 9 seconds (double mechanisms to ensure the delivery reliably), with PDF-invoice.Question 2: Can I share the purchased PDF of QB/T 5137-2017_English with my colleagues?Answer: Yes. 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