GB/T 18868-2024 English PDFUS$309.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 18868-2024: Rapid determination of moisture, crude protein, crude fibre, crude fat, lysine and methinione in feeds - Near infrared spectroscopy Status: Valid GB/T 18868: Historical versions
Basic dataStandard ID: GB/T 18868-2024 (GB/T18868-2024)Description (Translated English): Rapid determination of moisture, crude protein, crude fibre, crude fat, lysine and methinione in feeds - Near infrared spectroscopy Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: B46 Classification of International Standard: 65.120 Word Count Estimation: 15,170 Date of Issue: 2024-10-26 Date of Implementation: 2025-05-01 Older Standard (superseded by this standard): GB/T 18868-2002 Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration GB/T 18868-2024: Rapid determination of moisture, crude protein, crude fibre, crude fat, lysine and methinione in feeds - Near infrared spectroscopy---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/GBT18868-2024 Rapid determination of moisture, crude protein, crude fiber, crude fat, lysine and methinione in feeds - Near infrared spectroscopy Water, crude protein, crude fiber, Rapid determination of crude fat, lysine and methionine Near-infrared spectroscopy Rapid determination of moisture, crude protein, crude fiber, crude fat, lysine and methinione in feeds-Near infrared spectroscopy ICS 65.120 CCS B 46 National Standard of the People's Republic of China Replaces GB/T 18868-2002 Released on October 26, 2024 Implementation on May 1, 2025 State Administration for Market Regulation The National Standardization Administration issued PrefaceThis document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1.Structure and drafting rules for standardization documents" Drafting is required. This document replaces GB/T 18868-2002 "Fast determination of moisture, crude protein, crude fiber, crude fat, lysine and methionine in feeds" Compared with GB/T 18868-2002, in addition to structural adjustments and editorial changes, the main technical changes are as follows. The scope of application has been changed (see Chapter 1, Chapter 1 of the.2002 edition); a) Changed terms and definitions (see Chapter 3, Chapter 4 of the.2002 edition); b) Changed the principles (see Chapter 4, Chapter 3 of the.2002 edition); c) The instrumentation has been changed (see Chapter 5, Chapter 5 of the.2002 edition); d) The sample has been changed (see Chapter 6 and Appendix A, Chapter 6 of the.2002 edition); e) The test steps have been changed (see Chapter 7, Appendix B, Appendix C and Appendix D, Chapter 7 of the.2002 edition); f) Added experimental data processing (see Chapter 8); g) The precision has been changed (see Chapter 9, Chapter 8 of the.2002 edition); h) The criteria and procedures for awarding certificates (see Appendix A of the.2002 edition) have been deleted. i) Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents. This document is proposed and coordinated by the National Feed Industry Standardization Technical Committee (SAC/TC 76). This document was drafted by. Sichuan Well Testing Technology Co., Ltd., Agricultural Quality Standards and Testing Technology Research Institute of the Chinese Academy of Agricultural Sciences Institute, Tongwei Agricultural Development Co., Ltd. The main drafters of this document are. Song Tao, Zhang Fengping, Fan Xia, Qi Mengmeng, Tang Yao, Feng Yuchao, Liu Xiaolu, Zhuo Lin, Guo Jinsong, Zhang Lu, Duan Ling, and Yuan Lujun. The previous versions of this document and the documents it replaces are as follows. First published in.2002 as GB/T 18868-2002; This is the first revision. Water, crude protein, crude fiber, Rapid determination of crude fat, lysine and methionine Near-infrared spectroscopy1 ScopeThis document describes the rapid determination of moisture, crude protein, crude fiber, crude fat, lysine and methionine in feed using near infrared spectroscopy. method. This document applies to the moisture, crude protein content of compound feed, concentrated feed, concentrate supplement and feed raw materials (excluding mineral feed raw materials). Rapid determination of protein, crude fiber and crude fat, as well as lysine and protein in compound feeds, concentrate feeds, concentrate supplements and protein feeds Rapid determination of amino acids.2 Normative referencesThe contents of the following documents constitute the essential clauses of this document through normative references in this document. For referenced documents without a date, only the latest version (including all amendments) applies to this document. In this document. GB/T 6432 Determination of crude protein in feeds - Kjeldahl method GB/T 6433 Determination of crude fat in feeds GB/T 6434 Determination of crude fiber content in feed GB/T 6435 Determination of moisture in feeds GB/T 15399 Determination of sulfur amino acids in feeds—Ion exchange chromatography GB/T 18246 Determination of amino acids in feed GB/T 20195 Preparation of animal feed samples3 Terms and DefinitionsThe following terms and definitions apply to this document. 3.1 near infrared spectrum The sample's absorption intensity of light in the near-infrared spectral range of 770 nm to 2 500 nm (12 900 cm-1 to 4 000 cm-1). 3.2 near infrared spectrometernear infrared spectrometer An instrument for measuring the near-infrared spectrum of a sample, with detection modes such as diffuse reflection or transmission. Note. The spectral range of the instrument is the near-infrared full spectrum range of 770 nm ~ 2 500 nm (12 900 cm-1 ~ 4 000 cm-1), part of the full spectrum range or selected The wavelength or wave number of the wavelength. According to the optical principle, it can be divided into dispersion type, interference type or athermal type. 3.3 measuring accessories Components that carry the specimen. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 18868-2024_English be delivered?Answer: Upon your order, we will start to translate GB/T 18868-2024_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 18868-2024_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 18868-2024 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. |
