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GA/T 1649-2019: Forensic sciences - Specifications for validation of examination methods for toxicants
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Forensic sciences - Specifications for validation of examination methods for toxicants
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GA/T 1649-2019
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Basic data | Standard ID | GA/T 1649-2019 (GA/T1649-2019) | | Description (Translated English) | Forensic sciences - Specifications for validation of examination methods for toxicants | | Sector / Industry | Public Security (Police) Industry Standard (Recommended) | | Classification of Chinese Standard | A92 | | Classification of International Standard | 13.310 | | Word Count Estimation | 10,115 | | Date of Issue | 2019 | | Date of Implementation | 2019-12-01 | | Issuing agency(ies) | Ministry of Public Security | GA/T 1649-2019: Forensic sciences - Specifications for validation of examination methods for toxicants
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Forensic sciences - Specifications for validation of examination methods for toxicants
ICS 13.310
A92
Public Safety Industry Standard of the People's Republic of China
Forensic science validation methods for poison testing methods
Published on October 14,.2019
2019-12-01 Implementation
Issued by the Ministry of Public Security of the People's Republic of China
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
Please note that some content of this document may involve patents. Publication of this document
The institution does not assume responsibility for identifying these patents.
This standard was proposed by the National Toxic Analysis Sub-Committee of Criminal Technology Standardization Technical Committee (SAC/TC179/SC1) and
Be in charge.
This standard was drafted by. Physical Evidence Appraisal Center of the Ministry of Public Security, China National Accreditation Service for Conformity Assessment.
Drafters of this standard. Dong Ying, Chang Jing, He Yi, Liu Shuo, Hua Feng, Tang Danzhou, Wang Yanbin, Chen Xia, Bai Qinghua.
Forensic science validation methods for poison testing methods
1 Scope
This standard stipulates the confirmation specifications of the standard and non-standard methods of forensic scientific toxicological testing.
This standard applies to the introduction of standard methods and non-standard methods (for example. laboratory design (development) methods,
Confirmation of standard methods, extended and modified standard methods used beyond its scope of identification.
2 Normative references
The following documents are essential for the application of this document. For dated reference documents, only the dated version applies to this article
Pieces. For the cited documents without date, the latest version (including all amendments) applies to this document.
JJF1001 General Measurement Terms and Definitions
JJF1059.1 Evaluation and expression of measurement uncertainty
GA/T 122 Nomenclature of poison analysis
3 Terms and definitions
The terms and definitions defined in JJF1001 and GA/T 122 apply to this document.
4 Confirmation of standard methods
4.1 Method confirmation
The confirmed content mainly involves the following 6 aspects.
a) Personnel. Evaluation of the human resources required to implement the new standard, that is, whether the personnel have the required skills and capabilities;
Personnel training and take up positions after examination.
b) Equipment. Evaluation of the suitability of existing equipment and whether it has the required standard/reference materials (reference materials), if necessary
To supplement.
c) Environment. Evaluation of facilities and environmental conditions, verification if necessary.
d) Preparation. The evaluation of the preparation of identification materials, including storage, pre-treatment and other links to meet the requirements of the standard.
e) Report. Evaluation of whether the operation instructions, original records, report format and their contents meet the requirements of the standard.
f) Method. Compare old and new standards, especially the evaluation of difference analysis and comparison.
The laboratory's verification of the standard method should have relevant documentation and supporting documentation, and the standard method should be re-confirmed after the change.
Validation of the method may include the results of interlaboratory comparisons or proficiency tests previously participated, as well as determination of measurement uncertainty and detection limits
The result of a pilot test/calibration plan for a sample or article of known value that has been used.
4.2 Preparation of work instructions
When necessary, work instructions should be prepared to supplement the standard method to ensure the consistency of application.
The laboratory should identify the need for working instructions for the method based on the level of technical qualities of personnel and the complexity of instrument operation.
When there are difficulties in understanding and operation of the method used, that is, if the lack of operation instructions may endanger the experimental results, the laboratory should formulate the corresponding
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