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Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 15030-2021: (Sisal wire rope core) Status: Valid GB/T 15030: Historical versions
Basic dataStandard ID: GB/T 15030-2021 (GB/T15030-2021)Description (Translated English): (Sisal wire rope core) Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: W32 Word Count Estimation: 11,192 Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration GB/T 15030-2021: (Sisal wire rope core)---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.(Sisal wire rope core) ICS 59.080.50 CCS W58 National Standards of People's Republic of China Replacing GB/T 15030-2009 Sisal wire rope core (ISO 4345.1988, Steelwireropes-Fibremaincores-Specification, NEQ) Published on 2021-10-11 2022-05-01 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" drafted. This document replaces GB/T 15030-2009 "Sisal Wire Rope Core", compared with GB/T 15030-2009, except for structural adjustment and editing In addition to the sexual changes, the main technical changes are as follows. --- Deleted the naming of the product (see 4.1 of the.2009 edition); --- Changed the product structure description (see 4.1, 4.2 of the.2009 edition); --- Changed the representation of product marks (see 4.3, 4.4 of the.2009 edition); --- Increased requirements for grease (see 5.1.2); --- Added requirements and test methods for product appearance (see 5.2 and 7.1); --- Delete the "extremely poor" indicator requirements (see 5.2 of the.2009 edition); --- Increased the index requirements and test methods of "twist direction and lay length" (see 5.4 and 7.4); --- Changed the indicator requirements of "oil content" in "Technical Indicators" (see 5.4, 5.2 of the.2009 edition); --- Increased the index requirements and test methods of "length tolerance" (see 5.5 and 7.9); --- Changed the calculation method for the pretension of the rope core in "Diameter" (see 7.2, 6.2.2 of the.2009 edition); --- Changed the test method of "Linear Density" and the expression of C value (see 7.3, 6.2.1.1 of the.2009 edition); --- Added "Inspection Rules" (see Chapter 8); --- Changed the index requirements of "quality tolerance of rope core package" (see 9.4, 7.4 of the.2009 edition); --- Changed the calculation formula of "water-soluble acidity" (see Appendix A, Appendix A of the.2009 edition); --- Changed the calculation formula of "salt content" (see Appendix B, Appendix B of the.2009 edition). This document is drafted with reference to ISO 4345.1988 "Specifications for Wire Rope Fiber Cores", and the degree of consistency is non-equivalent. 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 and managed by the Ministry of Agriculture and Rural Affairs of the People's Republic of China. This document is drafted by. Quality Supervision, Inspection and Testing Center of Sisal and Products, Ministry of Agriculture and Rural Affairs, Jiangsu Dada Textile Technology Co., Ltd. The main drafters of this document. Chen Weinan, Ye Jianjun, Chen Lisha, Song Zhicheng, Mao Lijun. This document was first published in.1994, and was revised for the first time in.2009.This is the second revision. Sisal wire rope core1 ScopeThis document specifies the terms and definitions, construction, specifications and markings, requirements, sampling, test methods, inspection rules, packages of sisal wire rope cores packaging and marking, transport and storage. This document applies to wire rope cores twisted from sisal fibers.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 6682 Analysis Laboratory Water Specifications and Test Methods GB/T 8834 Determination of physical and mechanical properties of fiber ropes NB/SH/T 0387 Grease for wire rope NY/T 243 Determination of moisture regain of sisal fibers and products NY/T 245 Determination of oil content of sisal fiber products NY/T 1523 Sisal yarn for wire rope core3 Terms and DefinitionsThe following terms and definitions apply to this document. 3.1 solutionacidity The amount of water-soluble acid that can be fully extracted from the sisal wire rope core. Note. The water-soluble acidity is used to neutralize the fully extracted water-soluble acid per 100g sample and consume 0.1mol/L of sodium hydroxide or potassium hydroxide solution in milliliters (mL/L/L) 100g) indicated. 3.2 salt content Chloride content in sisal wire rope cores. Note. The salt content is expressed by the percentage (%) of sodium chloride contained in the rope core. 4 Construction, Specifications and Marking 4.1 Structure 4.1.1 The sisal steel wire rope core (hereinafter referred to as "rope core") is double-twisted, the yarn is twisted into strands, and the strands are then twisted into the rope core. The typical structure is three strands, which are divided into left and right strands. Twist (S) and right twist (Z). ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 15030-2021_English be delivered?Answer: Upon your order, we will start to translate GB/T 15030-2021_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.Question 2: Can I share the purchased PDF of GB/T 15030-2021_English with my colleagues?Answer: Yes. 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Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 15030-2021 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically. |
