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Delivery: <= 4 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 41557-2022: Combination certification for deliveries of raw wool regulation Status: Valid
Basic dataStandard ID: GB/T 41557-2022 (GB/T41557-2022)Description (Translated English): Combination certification for deliveries of raw wool regulation Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: W20 Word Count Estimation: 21,284 Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration GB/T 41557-2022: Combination certification for deliveries of raw wool regulation---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.Combination certification for deliveries of raw wool regulation ICS 59.060 CCS W20 National Standards of People's Republic of China Raw wool and licensing rules deliveriesofrawwool, MOD) Published on 2022-07-11 2023-02-01 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 is revised and adopted the International Wool Textile Organization standard IWTO-31-02 "IWTO Raw Wool Delivery Batch and Batch Certificate Calculation". Compared with IWTO-31-02, this document has more structural adjustments. For a list of the structure number changes between the two files, see Appendix A. The technical differences between this document and IWTO-31-02 and their reasons are as follows. --- Delete the principle (see Chapter 3 of IWTO-31-02), this document is mainly for the provisions of batch calculation, the principle is in practical application It is not meaningful; --- Delete the terms "raw hair", "hair base", "vegetable impurity base", "grasping wool sample", "drill core sample", "sub-sample", "hardhead thorn and branch base" "Burl Length", "Burst Strength", "Clean Color", "Tristimulus Value", "Reflectivity", "Radiation Factor" (see Section 4 of IWTO-31-02 Chapter), in line with my country's technical conditions, to meet the needs of the use of this document; --- The test method is changed to be performed according to GB 1523 (see Chapter 4, Chapter 5 of IWTO-31-02), which meets the technical conditions of our country, and Harmonize with existing standards; --- Deleted the accuracy calculation (see 6.1.3, 6.2.3, 6.3.3, 6.4.3, 7.1.3, 7.2.3, 7.3.3, 7.4.3 of IWTO-31-02), The need for accuracy is not given in practical applications; --- Deleted the "tri-stimulus value" (see 6.4 and 7.4 of IWTO-31-02), which is not involved in Chinese wool, and is suitable for Chinese sheep Status of the wool industry; --- Deleted the "result expression" part (see Chapter 8 of IWTO-31-02) to adapt to the current situation of my country's wool industry; --- Added and approved certificate (see Chapter 7) to facilitate the use of this document in wool trading. The following editorial changes have been made to this document. --- In order to harmonize with the existing standards, change the name of the standard to "Rules for the issuance of raw wool and certificates"; --- Added Appendix B (informative) "Certificate of Consolidation"; --- Deleted all notes and clause footnotes in IWTO-31-02; --- Deleted Appendix A and Appendix B of IWTO-31-02. 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 National Fiber Standardization Technical Committee (SAC/TC513). This document is drafted by. Fiber Quality Monitoring Center of Inner Mongolia Autonomous Region. The main drafters of this document. Lv Xiaohong, Wang Li, Xu Xuanxuan, Yao Miaomiao, Qi Hong, Dai Lingjie, Wang Quancai, Cao Weifang, Liu Di. Raw wool and licensing rules1 ScopeThis document specifies the test methods for the raw wool and batch certification rules, the calculation of the batch results, the calculation of the remainder of the delivery batch by the deduction method. And batch calculation and batch certificate. This document is applicable to the issuance of the raw wool delivery batch inspection certificate.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 1523 Sheep wool3 Terms and DefinitionsThe following terms and definitions apply to this document. 3.1 And batch certificate combinedcertificate Certificate of wool delivery lot (3.2). Note. The results of the certificate are obtained by mathematical calculation based on the individual test data of 2 or more gross batches that make up the delivery batch, and the results of each individual test certificate are The issuance of the fruit adopts the same testing standards as the delivery batch. 3.2 delivery batch delivery The delivery quantity of raw wool covered by a batch of wool certificates. Note. The delivery batch generally consists of 2 or more sales batches, each batch is tested according to the same testing standard and the test results are combined. 3.3 Mao batch lot A combination of any number of bales for sale in accordance with trade practice. 3.4 Commercial net gross margin commercialield Net gross percentage calculated from hair base, vegetable matter base, hardhead thorn and branch base. Note. It can be expressed as the percentage of the weight of the net wool in the batch or delivery batch to the weight of the greasy wool. 3.5 Distribution of fiber diameters in a wool sample or batch. Note. It is usually expressed by two parameters, the arithmetic mean and the coefficient of variation, which are obtained by measuring the diameter of a large number of fiber fragments. 3.6 Group distance classintervals Group the diameter measurements of individual fiber slices from the sample or batch, with the same diameter range (microns) for each group. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 41557-2022_English be delivered?Answer: Upon your order, we will start to translate GB/T 41557-2022_English as soon as possible, and keep you informed of the progress. The lead time is typically 2 ~ 4 working days. 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