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GB/T 23182-2025: Guideline for method development, validation and verification and internal quality control in feed quality and safety detection
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GB/T 23182-2025	English	359	Add to Cart	4 days [Need to translate]	Guideline for method development, validation and verification and internal quality control in feed quality and safety detection
GB/T 23182-2008	English	189	Add to Cart	3 days [Need to translate]	Procedure for veterinary drug and other chemicals determination in feeds

GB/T 23182-2025: Guideline for method development, validation and verification and internal quality control in feed quality and safety detection

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ICS 65.120 CCSB46 National Standards of the People's Republic of China Replaces GB/T 23182-2008 Establishment, validation, and verification of feed quality and safety testing methods Laboratory Internal Quality Control Implementation Guide Published on 2025-08-29 Implemented on 2026-03-01 State Administration for Market Regulation The State Administration for Standardization issued a statement.

Foreword

This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part 1.Structure and Drafting Rules of Standardization Documents". Drafting. This document supersedes GB/T 23182-2008 "Experimental Procedures for the Detection of Veterinary Drugs and Other Chemicals in Feed" and is consistent with GB/T 23182-2008. In comparison, aside from structural adjustments and editorial changes, the main technical changes are as follows. a) The scope has been changed (see Chapter 1, Chapter 1 of the.2008 edition); b) The section on "Feed Sampling" has been removed (see Chapter 4 of the.2008 edition); c) Change "Detection of veterinary drugs and other chemicals in feed" to "Method establishment" and "Method validation" (see Chapters 4 and 5). Chapter 5 of the.2008 edition); d) Change "Confirmation of detection of veterinary drugs and other chemicals" to "Method validation" (see Chapter 6, Chapter 6 of the.2008 edition); e) Added "Internal Quality Control in the Laboratory" (see Chapter 7); f) The sections on “Results Calculation and Presentation” and “Experiment Report Writing” have been removed (see Chapters 7 and 8 of the.2008 edition). Please note that some content in this document may involve patents. The issuing organization of this document assumes no responsibility for identifying patents. This document was proposed and is under the jurisdiction of the National Technical Committee on Standardization of Feed Industry (SAC/TC76). This document was drafted by. Institute of Agricultural Quality Standards and Testing Technology, Chinese Academy of Agricultural Sciences; National Animal Husbandry Service; China Agricultural University. Shanghai Municipal Animal Disease Prevention and Control Center, Shandong Provincial Livestock Product Quality and Safety Center. The main drafters of this document are. Chang Biying, Tian Shuangxi, Fan Xia, Zhang Fengping, Su Shenglan, Zhao Enze, Li Junling, Huang Shixin, Cheng Linli, and Liu Xiaolu. Shang Jun and Suo Decheng. The release history of this document and the document it replaces is as follows. ---First published in.2008 as GB/T 23182-2008; ---This is the first revision. Establishment, validation, and verification of feed quality and safety testing methods Laboratory Internal Quality Control Implementation Guide 1.Scope This document provides guidance on the establishment, validation, verification, and internal quality control of chemical analysis methods for feed quality and safety testing. suggestion. This document applies to the establishment, validation, verification, and internal quality control of chemical analysis methods for the quality and safety testing of feed and feed additives. control. This document does not apply to biological analysis methods.

2 Normative references

The contents of the following documents, through normative references within the text, constitute essential provisions of this document. Dated citations are not included. For references to documents, only the version corresponding to that date applies to this document; for undated references, the latest version (including all amendments) applies. This document. GB 5009.295-2023 General Rules for Validation of Chemical Analysis Methods (National Food Safety Standard) GB 13078 Feed Hygiene Standard GB/T 32465-2015 Requirements for Validation and Internal Quality Control of Chemical Analysis Methods 3.Terms and Definitions The following terms and definitions apply to this document. 3.1 Qualitative method Analytical methods for identifying substances based on their chemical, biological, or physical properties. [Source. GB/T 27417-2017, 3.5] 3.2 Quantitative method Analytical methods for determining the mass or mass fraction of an analyte. Note. Express numerical values using appropriate units. [Source. GB/T 27417-2017, 3.6, with modifications] 3.3 Confirmatory method It can provide all or part of the information about the target substance, based on which the nature of the substance can be clearly defined, and, if necessary, further analysis can be performed at the concentration level of interest. Methods of measurement. [Source. GB/T 27417-2017, 3.7] 3.4 Screening method It has the ability to efficiently process large numbers of samples, and is used to detect the presence of a substance or a group of substances at a concentration level of interest. method. Note. These methods are used to screen a large number of samples for potential positive results and to avoid false negatives. The test results obtained by these methods are typically qualitative. Results or semi-quantitative results. [Source. GB/T 27417-2017, 3.8] 3.5 sensitivity The degree of change in the response quantity of an analytical method to a change in the unit concentration or unit amount of analyte. 3.6 Trueness The degree of agreement between the average of an infinite number of repeated measurements and a reference value. [Source. ISO /IEC Guide 99.2007, 2.14] 3.7 accuracy The degree of consistency between the measured value (result) of the analyte in the sample and the true value or agreed true value of the measured substance. 3.8 matrix effects The influence of one or more components in the sample matrix on the detection results of the target analyte. Note. Compared to the detection results of the target analyte in the reagent, the matrix effect may cause the target analyte response signal to be enhanced or weakened. [Source. GB/T 32467-2015, 9.29] 3.9 linear range The concentration range of the analyte exhibits a linear relationship with the instrument response value and meets quantitative requirements (precision and accuracy). 3.10 Limit of detection (LOD) The analytical method can detect the lowest amount (or lowest concentration) of the analyte from the sample background signal within a given confidence level, but accuracy is not guaranteed. Quantitative. 3.11 The analytical method, while meeting quantitative requirements (precision and accuracy), can quantitatively determine the lowest amount (or lowest value) of the analyte in the sample. concentration). 3.12 Recovery rate The percentage of the measured value of the analyte in a known exact sample or the test substance added to a blank sample relative to its true value. 3.13 Precision The degree of consistency between the measured values obtained by repeatedly measuring the same sample using analytical methods. 3.14 The percentage of the standard deviation (SD) of multiple measurements to the arithmetic mean. 3.15 repeatability Under repeatability conditions, the degree of consistency between independent test results. 3.16 In the same laboratory, by the same operator using the same equipment and reagents, according to the same test method, and within a short period of time, from the same test subject... The conditions under which objects obtain mutually independent results. 3.17 reproducibility Under reproducibility conditions, the degree of consistency between test results. 3.18 In different laboratories, by different operators using different equipment and reagents, following the same testing method, samples were taken from the same test subject. The conditions for obtaining test results. 3.19 minimum limit The limits for substances that specify and require a certain quantitative characteristic. [Source. GB/T 27417-2017, 3.9, with modifications] 3.20 Method selectivity The method can distinguish the target analyte from other components in the sample (such as other analytes, matrix components, and other possible interfering substances). degree. [Source. GB/T 32467-2015, 9.14] 3.21 Method robustness Method durability The sensitivity of analytical methods to minute variations in conditions that are not typically controlled or kept perfectly consistent in the laboratory. [Source. GB/T 32467-2015, 9.15] 3.22 Method validation Through experiments, the laboratory provides objective and valid evidence to prove that a specific testing method meets its intended purpose. 3.23 In a laboratory setting, at reasonable time intervals, the same or different samples are analyzed using a method under predetermined conditions. Analytical experiments are conducted to demonstrate that a specific detection method meets its intended purpose. [Source. GB/T 27417-2017, 3.3] 3.24 To demonstrate the effectiveness of a specific detection method by performing the same method on the same sample in two or more laboratories under predetermined conditions. It meets its intended use. [Source. GB/T 27417-2017, 3.4] 3.25 Method verification The laboratory, through verification, provided objective and valid evidence to prove that it met the requirements stipulated in the testing method. [Source. GB/T 27417-2017, 3.2] ...