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Delivery: <= 7 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 20195-2024: Animal feed - Preparation of test samples Status: Valid GB/T 20195: Historical versions
Basic dataStandard ID: GB/T 20195-2024 (GB/T20195-2024)Description (Translated English): Animal feed - Preparation of test samples Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: B46 Classification of International Standard: 65.120 Word Count Estimation: 50,595 Date of Issue: 2024-09-29 Date of Implementation: 2025-04-01 Older Standard (superseded by this standard): GB/T 20195-2006 Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration GB/T 20195-2024: Animal feed - Preparation of test samples---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.ICS 65.120 CCSB46 National Standard of the People's Republic of China Replaces GB/T 20195-2006 Preparation of animal feed samples (ISO 6498.2012,Animalfeedingstuffs-Guidelinesforsample Released on 2024-09-29 2025-04-01 Implementation State Administration for Market Regulation The National Standardization Administration issued Table of ContentsPreface III 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 General principles and requirements 5 5 Sample preparation errors 7 5.1 Overview 7 5.2 Sample reduction error and other errors 7 5.3 Minimum mass of scaled samples 8 5.4 Errors related to sampling techniques 8 6 Safety Precautions 9 7 Equipment 10 7.1 General 10 7.2 General Equipment 10 7.3 Drying system 10 7.4 Equipment for reducing the mass and particle size of wet feeds (such as hay and silage) 10 7.5 Equipment for mass reduction and particle size reduction of dry feeds (e.g. cereals, mineral mixes, pelleted feeds) 10 7.6 Equipment for mass fractionation and particle size reduction of semi-moist feed (e.g. semi-moist pet food), canned pet food and dog chews 10 7.7 Sample storage apparatus and equipment 10 8 Procedure 11 8.1 General 11 8.2 Sample Verification 11 8.3 Quality reduction 13 8.4 Particle size reduction15 8.5 Partial drying 18 8.6 Coarse grinding 19 8.7 Special Sample Preparation Procedures 19 8.8 Storage 19 9 Performance Test (Quality Control) 20 9.1 General 20 9.2 Quality reduction performance test 20 9.3 Particle size reduction performance test 21 9.4 Mixing performance test 22 10 Description of feed types and sample preparation flow chart 22 10.1 General 22 10.2 Dry feed24 10.3 Bird food 25 10.4 Oilseeds and high-fat feeds 26 10.5 Whole cottonseed 27 10.6 Mineral mixtures and premixes 29 10.7 Aquatic feed 29 10.8 Fodder30 10.9 Grass and alfalfa hay pellets 32 10.10 Bulk and molasses briquettes 33 10.11 Textured feed (viscous feed) 34 10.12 Canned pet food 35 10.13 Semi-moist pet food and dog chews 36 10.14 Liquid feed 37 Appendix A (Informative) Comparison table of structure number changes between this document and ISO 6498.2012 38 Appendix B (Informative) Calculation, examples and tables of minimum mass 41 B.1 Overview 41 B.2 Calculation of FSE variance and component factors 41 B.3 Estimation of minimum mass, error in specific mass and calculation of maximum appropriate particle size 44 Reference 45ForewordThis 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. This document replaces GB/T 20195-2006 "Preparation of animal feed samples". Compared with GB/T 20195-2006, except for the structural adjustment In addition to the integration and editorial changes, the main technical changes are as follows. a) The wording of “scope” has been changed to give the types of feed (see Chapter 1, Chapter 1 of the.2006 edition); b) Added the terms and definitions of “batch” and “retained sample” in “sample”, “parameter”, “feed type” and “sample preparation procedure” (see 3.1.1, 3.1.5, 3.2, 3.3, 3.4); c) Change “principles” to “general principles and requirements” (see Chapter 4, Chapter 4 of the.2006 edition); d) Added “Sample Preparation Error” and “Safety Precautions” (see Chapter 5 and Chapter 6); e) "Instruments and equipment" was changed to "equipment", and the types of equipment were increased (see Chapter 7, Chapter 5 of the.2006 edition); f) "Sampling" has been deleted (see Chapter 6 of the.2006 edition); g) "Step" was changed to "Procedure", and sample preparation requirements were added (see Chapter 8, Chapter 7 of the.2006 edition); h) Added “Performance Test (Quality Control)” (see Chapter 9); i) "Correction Factor" has been deleted (see Chapter 8 of the.2006 edition); j) Added “Description of feed types and flow chart of sample preparation” (see Chapter 10). This document is modified to adopt ISO 6498.2012 “Guidelines for the preparation of animal feeding samples”. Compared with ISO 6498.2012, this document has many structural adjustments. The comparison table of structural number changes between the two documents is shown in Appendix A. The technical differences between this document and ISO 6498.2012 and their reasons are as follows. --- Changed the expression of “scope” and gave the feed categories, which is in line with the consistent practice of feed standard documents and is convenient for document users to understand. Interpretation and application (see Chapter 1, Chapter 1 of ISO 6498.2012); --- Changed the definition of "batch" to more completely express the concept of "batch" related to sample preparation (see 3.1.1, ISO 6498.2012 2.1.1); --- Changed the definition of "dry feed" to be consistent with my country's feed regulations (see 3.3.1, 2.3.4 of ISO 6498.2012); --- Added "equipment for reducing the mass and particle size of semi-wet feed (such as semi-wet pet food), canned pet food and dog chews" and Chapter 10 corresponds (see 7.6); ---Change "should not" in "the equipment should not have an adverse effect on subsequent analysis results" to "should not" to improve the operability of the judgment to eliminate ambiguity (see 8.4.2, 7.4.2 of ISO 6498.2012). The following editorial changes have been made to this document. --- In order to coordinate with the existing standard, the standard name was changed to “Preparation of animal feed samples”. --- Deleted the "Note" in the "Scope" of ISO 6498.2012. --- Changed the example in the definition of "by-product". --- Added the note in the definition of "premix". --- Added the note for “animal source protein” in Table 1. ---Corrected the following typographical errors in ISO 6498.2012. ● In Figure 1 of Chapter 2, “dry matter mass fraction < 15%” was corrected to “dry matter mass fraction < 85%”; ● In 4.3, "It can be concluded from Table 6 and Figure 2" "Table 6" is corrected to "Table 3"; ● In Table 5 of 7.2.4, “OCDs” is corrected to “Organochlorine Pesticides (OCPs)”; ● Corrected the data in the columns of oat sieving 1 and sieving 2 in Table 6 of 8.2, as well as the data in the columns of corn sieving 1, alfalfa sieving 1 and alfalfa The data of "ratio 50.50" in Screen 2; ● The “0 mesh sieve” in 8.3.1 is corrected to “20 mesh sieve”; ● The ρm value of Example 2 in the first table of Appendix A was corrected from “1.5” to “2”. --- Added Figures B.1 and B.2 in Appendix B. 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 was proposed and coordinated by the National Feed Industry Standardization Technical Committee (SAC/TC76). This document was drafted by. Institute of Agricultural Quality Standards and Testing Technology, Chinese Academy of Agricultural Sciences, National Animal Husbandry Station, Shandong Provincial Animal Products Quality and Safety Center, Shanghai Veterinary Drug and Feed Testing Institute, China Agricultural University, Qingdao Weilan Biotechnology Group Co., Ltd. The main drafters of this document are. Song Rong, Su Shenglan, Shang Jun, Li Junling, Li Yansong, Cheng Linli, Jin Rong, Wei Shulin, Yang Yunxia, Zhao Enze, Xu Xuemei, Wang Ruiguo, Li Libei, Xu Ting, Sun Yanjun, Zhao Xiaoyang, Qin Qianxi, Chen Yanan, and Song Yanli. The previous versions of this document and the documents it replaces are as follows. ---First published in.2006 as GB/T 20195-2006; ---This is the first revision. Preparation of animal feed samples1 ScopeThis document describes a method for the preparation of test specimens of animal feed (including pet feed) from laboratory samples. This document applies to compound feeds, concentrated feeds, concentrate supplements, additive premixes, feed additives and feed ingredients, as well as other Preparation of samples of other types of feed. Special instructions and provisions for sample preparation required by specific analytical methods are not included in this document.2 Normative referencesThis document has no normative references.3 Terms and definitionsThe following terms and definitions apply to this document. 3.1 Samples 3.1.1 Lot Produced from the same raw materials and the same production process or assumed to have the same quality, used as the sampling and inspection unit in the sampling rules A certain amount of feed. 3.1.2 Laboratory sample laboratorysample A sample taken from a batch of products and sent to a laboratory for inspection and testing. 3.1.3 Test sample Laboratory samples are samples that have been reduced and/or prepared by mass and used to weigh or measure test materials. 3.1.4 Test material testportion A quantity of test material removed from a test specimen or laboratory sample (if both are the same) and used for verification testing 3.1.5 reserve sample The remaining sample that has not been crushed after the laboratory sample has been reduced in mass and the specimens have been separated. NOTE. If the whole laboratory sample is to be used for sample preparation for mycotoxin or GMO analysis, the reserve sample should also be pulverized to a particle size consistent with the analysis and Store under conditions that maintain its properties. 3.2 Parameters 3.2.1 parameter The analyte, component or microorganism determined by microscopic, microbiological, biological or chemical methods in feed analysis. biology. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 20195-2024_English be delivered?Answer: Upon your order, we will start to translate GB/T 20195-2024_English as soon as possible, and keep you informed of the progress. The lead time is typically 4 ~ 7 working days. The lengthier the document the longer the lead time.Question 2: Can I share the purchased PDF of GB/T 20195-2024_English with my colleagues?Answer: Yes. 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