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GB/T 27043-2025: Conformity assessment - General requirements for the competence of proficiency testing providers
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Conformity assessment - General requirements for the competence of proficiency testing providers
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Conformity assessment -- General requirements for proficiency testing
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Basic data | Standard ID | GB/T 27043-2025 (GB/T27043-2025) | | Description (Translated English) | Conformity assessment - General requirements for the competence of proficiency testing providers | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | A00 | | Classification of International Standard | 03.120.20 | | Word Count Estimation | 34,333 | | Date of Issue | 2025-08-01 | | Date of Implementation | 2025-08-01 | | Older Standard (superseded by this standard) | GB/T 27043-2012 | | Issuing agency(ies) | State Administration for Market Regulation, Standardization Administration of China | GB/T 27043-2025: Conformity assessment - General requirements for the competence of proficiency testing providers
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ICS 03.120.20
CCSA00
National Standard of the People's Republic of China
Replaces GB/T 27043-2012
General requirements for the competence of proficiency testing providers for conformity assessment
(ISO /IEC 17043.2023, IDT)
Released on August 1, 2025
Implementation on August 1, 2025
State Administration for Market Regulation
The National Standardization Administration issued
Table of Contents
Preface III
Introduction IV
1 Scope 1
2 Normative references 1
3 Terms and Definitions 1
4 General Requirements 3
4.1 Fairness 3
4.2 Confidentiality 3
5 Structural requirements 3
6 Resource Requirements 4
6.1 General Principles 4
6.2 Personnel 4
6.3 Facilities and Environmental Conditions 5
6.4 Externally provided products and services 5
7 Process Requirements 6
7.1 Proficiency Testing Program Objectives Establishment, Contract Agreement and Communication 6
7.2 Design and planning of proficiency testing programmes 7
7.3 Preparation and distribution of proficiency testing items 8
7.4 Evaluation and reporting of proficiency testing program results 10
7.5 Control of the proficiency testing program process 12
7.6 Handling of complaints 13
7.7 Handling of Complaints 13
8 Management system requirements 14
8.1 General requirements 14
8.2 Management system documentation 14
8.3 Control of management system documents 14
8.4 Record Control 15
8.5 Measures to address risks and opportunities 15
8.6 Improvement 15
8.7 Corrective Actions 15
8.8 Internal Audit 16
8.9 Management Review 16
Appendix A (Informative) Types of Proficiency Testing Schemes 18
A.1 General Principles18
A.2 Types of proficiency testing schemes 18
A.3 External Quality Assessment Plan 20
A.4 Other inter-laboratory comparisons 20
Appendix B (Informative) Statistical Methods for Proficiency Testing 21
B.1 General Principles 21
B.2 Evaluation of homogeneity and stability of proficiency testing items 21
B.3 Determination of assigned values and their uncertainty 22
B.4 Calculation of Performance Statistics 23
B.5 Performance Evaluation 25
Reference 27
Preface
This 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 27043-2012 "General requirements for capability verification for conformity assessment" and is consistent with GB/T 27043-2012.
In addition to structural adjustments and editorial changes, the main technical changes are as follows.
a) Added the term "consensus value" (see 3.2);
b) The terms “coordinator”, “robust statistical methods”, “subcontractor”, “metrological traceability” and “measurement uncertainty” have been deleted (see.2012 edition
3.2, 3.12, 3.14, 3.15, and 3.16 of);
c) The terms “assigned value” (see 3.1,.2012 edition), “interlaboratory comparison” (see 3.4,.2012 edition), and “off-label” have been changed.
Group Values” (see 3.5, 3.5 of the.2012 edition), “Participants” (see 3.6, 3.6 of the.2012 edition), “Capability Verification” (see 3.7 and
Note, 3.7 and Note of the.2012 edition), “Proficiency testing items” (see 3.8, 3.8 of the.2012 edition), “Proficiency testing providers” (see
3.9, 3.9 of the.2012 edition), “Proficiency testing rounds” (see 3.10, 3.10 of the.2012 edition), “Proficiency testing plan” (see
3.11, 3.11 of the.2012 edition) and “Standard deviation of competence assessment” (see 3.12 and note, 3.13 and note of the.2012 edition);
d) Added the requirements for the effectiveness of proficiency testing (see 5.5, 5.6, 6.1.2, 6.1.3, 6.3.1, 6.3.2, 6.3.3, 6.4.3, 6.4.6, 7.2.1.1,
7.2.1.2, 7.3.4.3, 7.4.1.1, 7.5.3 and 8.5.3);
e) Added requirements for measurement/testing activities and production of proficiency testing items (see 6.1.2 and 6.1.3);
f) Added risk requirements in technical clauses (see 7.2.12, 7.3.2.1 and 7.5.4.1);
g) Added requirements for process monitoring (see 7.5.3).
This document is equivalent to ISO /IEC 17043.2023 “General requirements for the competence of proficiency verification providers for conformity assessment”.
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 Technical Committee for Certification and Accreditation of Standardization (SAC/TC261).
This document was drafted by. China National Accreditation Service for Conformity Assessment, Beijing Zhongshi Guojin International Laboratory Proficiency Testing Research Co., Ltd.,
China Certification and Accreditation Association, Weikai Testing Technology Co., Ltd., Qingdao Customs Technology Center, Beijing Hospital, Centre Testing International Group Co., Ltd.
Company, Zhejiang Institute of Metrology, China Household Electrical Appliances Research Institute, China Customs Science and Technology Research Center, China Inspection and Quarantine Science Research Institute
Research Institute, Hebei Beixin Semiconductor Technology Co., Ltd., Shanghai Drug Evaluation and Verification Center, China-Japan Friendship Environmental Protection Center, China University of Political Science and Law,
China Academy of Building Research Co., Ltd., China Classification Society Quality Certification Co., Ltd., Changsha Institute of Mining and Metallurgy Testing Technology Co., Ltd.,
China Food and Drug Inspection Institute, China Cybersecurity Review and Certification and Market Supervision Big Data Center, Tianjin Metrology Supervision and Inspection Scientific Research Institute
Research Institute, Shenzhen Yahuilong Biotechnology Co., Ltd., China Academy of Information and Communications Technology, and China National Institute of Standardization.
The main drafters of this document are. He Ping, Tang Lingtian, Jia Rujing, Zhang Liang, Zhu Jia, Huang Yu, Lei Zhiwen, Fu Binyou, Zhang Chuanbao, Ge Yan, Gong Chixiao,
Qiao Caixia, Gao Jinhuan, Chen Dongdong, Yang Meicheng, Xing Xiaoru, Wang Xigang, Wang Xu, Liu Yanhua, Wang Zhichao, Zhang Huiliang, Tian Qingyun, Hu Bingxiao, Tang Zhe,
Xiang Xinhua, Qian Chungeng, Bai Xue.
The previous versions of this document and the documents it replaces are as follows.
---First published in.1995 as GB/T 15483-1995;
--- When it was first revised in.1999, it was divided into two parts. GB/T 15483.1-1999 and GB/T 15483.2-1999;
--- During the second revision in.2012, the two parts were merged into GB/T 27043-2012;
---This is the third revision.
introduction
Proficiency testing (PT) is widely recognized as an important tool to demonstrate the competence of conformity assessment bodies.
This document has been developed to increase confidence in the operations of proficiency testing providers.
The document contains requirements for proficiency testing providers to enable them to demonstrate competence and to be able to effectively assess the performance of participants.
evaluate.
Proficiency testing uses interlaboratory comparisons to evaluate laboratory performance. In this document, the term “interlaboratory comparisons” (see 3.4) extends
The terms "laboratory" and "measurement/testing" are used to include all types of conformity assessment bodies and their activities, such as measurement,
Testing, calibration, inspection, testing or sampling. The term "method" as used in this document is synonymous with the term "measurement procedure" as defined in ISO /IEC Guide 99.
Synonymous.
There are many different purposes for inter-laboratory comparisons (which can be achieved through proficiency testing schemes), including but not limited to.
a) evaluating the performance of a laboratory in carrying out a specific measurement, test, calibration, inspection, testing or sampling;
b) Identify laboratory problems that may be related to measurement/test methods, effectiveness of personnel training and supervision, equipment calibration,
Related factors such as;
c) Establish the validity of measurement/testing methods and the comparability of measurement/testing results;
d) Further enhance users’ confidence in measurement/test results;
e) identifying discrepancies in measurement/test results;
f) Help participating laboratories improve their knowledge based on the comparison results;
g) confirm the stated measurement uncertainty;
The term "proficiency testing" is not usually used for the following types of inter-laboratory comparisons, as the laboratory's competence must be confirmed in advance to ensure
Validity of measurements/tests and metrological traceability of assigned values.
h) evaluating the performance characteristics of a measurement/detection method (often referred to as collaborative testing);
i) Used for assigning values of standard substances/standard samples;
j) Support statements of measurement equivalence between metrology institutes at all levels achieved through key and supplementary comparisons.
Note. The “metrology institutions at all levels” here include the International Bureau of Weights and Measures (BIPM) and its related regional metrology organizations (RMOs), as well as metrology institutes at all levels in my country and designated
mechanism.
It is important to recognize that inter-laboratory comparisons for purposes h), i) and j) can provide independent evidence of laboratory competence.
The technical planning and operation of these inter-laboratory comparisons are required.
This document also requires proficiency testing providers to plan and implement measures to address risks and opportunities based on their experience. Addressing risks and opportunities
It lays the foundation for improving the effectiveness of the management system, achieving improvements and preventing negative events.
Address risks and opportunities.
Maintaining confidence in the performance of a laboratory is crucial not only for the laboratory and its clients, but also for other stakeholders such as the legal
It is also important to identify regulatory bodies, accreditation bodies, and other organizations that have specific requirements for laboratories. Most of the requirements in this document apply to
Many areas of ongoing development, particularly in management, planning and design, personnel, ensuring the validity of results and performance evaluations, confidentiality and other aspects
Surface (when appropriate).
This document is intended to provide a stable and reliable basis for all stakeholders to determine the competence of proficiency testing providers.
The chapters of this document are consistent with GB/T 27025, including general requirements, structural requirements, resource requirements, process requirements and management system
In order to reflect the original meaning of the English text, and taking into account the established reading habits of domestic readers, this document defines “ability” in accordance with the original English text.
Competence is the comprehensive expression of the ability to apply knowledge and skills to achieve desired results.
Currently, "performance" is mainly used to describe the results or achievements of participants in a specific program. Usually, a series of good performance in the past
The two terms "proficiency testing" and "proficiency assessment standard deviation" should be treated as a whole and cannot be separated.
General requirements for the competence of proficiency testing providers for conformity assessment
1 Scope
This document specifies the common requirements for the competence, impartiality and consistency of operations of proficiency testing providers across all proficiency testing schemes.
This document can also serve as a general basis for developing specific technical requirements for special application areas.
This document is intended for users of proficiency testing schemes, statutory authorities, organizations and schemes using peer review, accreditation bodies and their
Other bodies confirm or recognize the competence of the proficiency testing provider.
2 Normative references
The 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 version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to
This document.
principles)
Note. GB/T 27000-2023 Conformity assessment vocabulary and general principles (ISO /IEC 17000.2020, IDT)
Note. GB/T 27025-2019 General requirements for the competence of testing and calibration laboratories (ISO /IEC 17025.2017, IDT)
Note. GB/T 15000.7-2021 Guidelines for the work of reference samples Part 7.General requirements for the competence of reference sample producers (ISO 17034.2016,
IDT)
3 Terms and Definitions
For the purposes of this document, the terms and definitions defined in ISO /IEC 17000 and ISO /IEC Guide 99 and the following apply.
3.1
assigned value
value assigned to a characteristic or property of a proficiency testing item (3.8)
[Source. ISO 13528.2022, 3.3, with modifications]
3.2
consensus value
The value obtained from a set of results of an interlaboratory comparison (3.4).
NOTE 1 “Consensus value” is often used to describe an estimate of the location and dispersion of results among participants (3.6) in a proficiency testing scheme (3.11) cycle, but can also be used to refer to the
A value obtained from the results of a subset of participants, such as several expert laboratories.
[Source. ISO 13528.2022, 3.11]
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