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GBZ22553-2010: Guidance for the use of repeatability, reproducibility and trueness estimates in measurement uncertainty estimation
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Guidance for the use of repeatability, reproducibility and trueness estimates in measurement uncertainty estimation
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GB/Z 22553-2010
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Basic data | Standard ID | GB/Z 22553-2010 (GB/Z22553-2010) | | Description (Translated English) | Guidance for the use of repeatability, reproducibility and trueness estimates in measurement uncertainty estimation | | Sector / Industry | National Standard | | Classification of Chinese Standard | A41 | | Classification of International Standard | 03.120.30 | | Word Count Estimation | 25,238 | | Date of Issue | 2010-09-02 | | Date of Implementation | 2010-12-01 | | Quoted Standard | GB/T 3358.1-2009; ISO 5725-3 | | Adopted Standard | ISO/TS 21748-2004, IDT | | Regulation (derived from) | ?National Standard Approval Announcement 2010 No.4 (Total No.159) | | Issuing agency(ies) | Ministry of Health of the People's Republic of China | | Summary | This standard specifies: Based on the GB/T 6379. 2-2004 collaborative trial data to assess in measurement uncertainty (MU). -Comparison of the results of collaborative trials and uncertainty propagation measurement uncertainty principle obtained (see Chapter 14). This document provides additional intermediate precision model ISO 5725-3, although this method can also be applied to these extended model, but does not include uncertainty evaluation in these models. The technical guidance document applies to all measurement and assessment tests in the field of uncertainty, does not apply to the application method is not given the lack of reproducibility of the data repeatability efficiency data. The technical guidance document applies to the identified, systematic effects can not be ignored has been fixed assumptions, numerical correction can be applied as part of a measurement method, or by finding and eliminate the reason to complete the effect. The guiding role of technical documents from the guidelines proposed uncertainty for many purposes under an effective evaluation method. But also use other appropriate assessment methods. The technical guidance document applies to the measurement results, methods and procedures or test results, methods and processes. | GBZ22553-2010: Guidance for the use of repeatability, reproducibility and trueness estimates in measurement uncertainty estimation
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Guidance for the use of repeatability, reproducibility and trueness estimates in measurement uncertainty estimation
ICS 03.120.30
A41
People's Republic of China national standardization of technical guidance documents
Use estimates of repeatability, reproducibility, and accuracy
Guidelines for assessing measurement uncertainty
Guidancefortheuseofrepeatability, reproducibility
(ISO /T S21748.2004, IDT)
2010-09-02 released
2010-12-01 implementation
General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
China National Standardization Administration released
Directory
Foreword Ⅱ
Introduction Ⅲ
1 Scope 1
2 Normative references 1
3 Terms and definitions 1
4 symbol 3
5 principle 5
5.1 Single Results and Measurement Process Performance 5
5.2 Applicability of reproducible data 5
5.3 Basic Statistics Model 5
5.4 Repeatability data 6
6 Assess measurement uncertainty using estimates of repeatability, reproducibility and accuracy
6.1 Measurement Uncertainty Assessment Procedure 6
6.2 Expected precision vs. actual precision 6
7 Establish the relationship between method performance data and measurement results during a particular measurement 6
7.1 Overview 6
7.2 Biased laboratory component control representation 6
7.3 Repeatability confirmation 8
7.4 Performance Confirmation 8
8 test sample related processing 8
8.1 Overview 8
8.2 Sample 8
8.3 Sample Preparation and Pretreatment 9
8.4 Test sample type changes 9
8.5 Uncertainty as the response level changes 9
9 other factors 9
General Expression of Synthetic Standard Uncertainty
11 List of Sources of Uncertainty Based on Collaborative Test Data 10
Evaluation of the uncertainty of the synthesis results
13 Expression of uncertainty information 11
13.1 General 11
13.2 Inclusion Factor Selection 11
14 Comparison of Method Performance and Uncertainty Data 12
14.1 Basic assumptions of comparison 12
14.2 Comparison Procedure 12
14.3 Causes of Differences 12
Appendix A (Informative) Uncertainty Estimation Method 13
Appendix B (Informative) Experimental Uncertainty Assessment 16
Appendix C (Informative) Uncertainty Calculation Example 17
References 20
Foreword
This technical note is equivalent to ISO /T S21748.2004 "Estimating measurements using repeatability, reproducibility and accuracy
Guide to Uncertainty. "
The main differences between this guidance document and ISO /T S21748.2004 are as follows.
--- Remove the foreword of the international standard;
--- Use the decimal point "." Instead of as a decimal point comma ",";
--- A.6 in A.2.1 "u (y) 2 = u (B) 2 u (er) 2 = u2L s2r" to "u (y) 2 = u (B) 2 u er) 2 =
s2L s2r ";
--- Correction of "WvN" in formula (C.2) of Appendix C, C.2.2 to "W mN".
Appendices A, B and C of this guidance document are informative appendices.
This Guidance Document is proposed and managed by the National Technical Committee for Standardization of Statistical Methods (SAC/TC21).
The drafting of the guidance of technical documents. Liaoning Exit Inspection and Quarantine, China National Institute of Standardization, Nankai University, Beijing Aerospace
University, Institute of Mathematics and Systems Science, Chinese Academy of Sciences, China National Accreditation Service for Conformity Assessment.
The main drafters of this technical guidance document Wang Dou Wen, Chen Yuzhong, Yu Zhen Fan, Zhang Fan, Yang Jun, Wang Haiying, Ding Wenxing, Song Guilan, Zeng Ze.
Introduction
The uncertainty of the measurement results is very important for interpreting the measurement results. Without a quantitative assessment of uncertainty, it is impossible to determine the measurement
The differences observed between the fruits contain information outside the test variation, whether the test items are in compliance with the specifications, and whether they exceed the regulations under which they are based
limit. Without uncertainty, there is the risk of erroneously processing the results, and the resulting wrong decisions can lead to unnecessary industrial use
Loss of law, wrong legal prosecution, or harmful health and adverse social consequences.
In accordance with GB/T 27025 accreditation and related system requirements, the laboratory should assess the uncertainty of measurement and test results, and give the relevant
Uncertainty Report. The Measurement Uncertainty Indication (GUM), published by ISO et al., Is a widely adopted standard method but
It is only suitable if the measurement process model is known. However, most of the standard test methods are based on GB/T 6379.2-2004
The collaborative test to complete. This guidance document provides a cost-effective method of evaluating the results of these standard test methods
Of the uncertainty is estimated in full compliance with the relevant principles of GUM, taking into account the method performance data obtained by the collaborative experiment.
The general methodology of this guidance document is as follows.
--- According to GB/T 6379.2-2004 described in the collaborative test described in the test method repeatability, reproducibility and accuracy of the estimate
Values, available from published information about the test method used. This information provides the variance between laboratories and laboratories
The estimated value, but also relates to the accuracy of the test method to estimate the uncertainty.
--- Laboratory should verify its own bias and precision, to determine whether the implementation of test methods meet the performance requirements of the method,
This shows that the published data can be applied to laboratory measurements.
--- Collaborative tests can not be included in all measurement results should be identified, and the resulting variance to be quantified.
According to the method described by GUM, an estimate of the uncertainty is given by synthesis of the variance estimates.
Similarly, the scatter of synergistic test results is often compared with the measurement uncertainty of the GUM program to test the validity of the method
A comprehensive understanding. Such a comparison is more effective if there is a consistent method of estimating the same parameters with the collaborative experimental data.
Use estimates of repeatability, reproducibility, and accuracy
Guidelines for assessing measurement uncertainty
1 Scope
This Guidance Document specifies.
--- Based on GB/T 6379.2-2004 collaborative test data to assess the measurement uncertainty (MU).
--- Comparison of test results and uncertainty of measurement uncertainty obtained by the principle of measurement (see Chapter 14).
This guidance document defines other model studies of ISO 5725-3 intermediate precision, although this method can also be applied to these
Extensions, but do not include uncertainty assessments under these models.
This technical note is applicable to all aspects of measurement and testing uncertainty in the assessment of the scope does not apply to the lack of reproducibility
Data repetitive data application method.
This guideline is applicable to identified, non-negligible system effects that have been corrected for assumptions and can be applied as part of a measurement methodology
Divide the value of the correction, or by looking for and eliminating the cause of the effect to complete.
This guidance document serves as a guideline and provides an effective method for assessing the uncertainty under various uses. However,
He appraised the method.
This guidance applies to measurement results, methods and procedures or test results, methods and procedures.
2 Normative references
The following documents contain provisions which, through reference in this Guidance Document, become the provisions of this Guidance Note document. All dated
Cited documents, all subsequent amendments (not including errata content) or revisions do not apply to this guidance document. However, drums
Recipients of the agreement based on this guidance document are encouraged to study whether the latest versions of these documents are applicable. All undated references
The latest version of this document applies to this guidance document.
Statistical vocabulary and symbols - Part 1. General statistical terms and terms used in probability (ISO 3534-
1.2006, IDT)
ISO 5725-3 Accuracy (accuracy and precision) of measurement methods and results Part 3. Standard measurement methods Precision
Interval measurement
3 Terms and definitions
The following terms and definitions apply to this guidance document.
3.1
Bias bias
The difference between the expectation of the test result and the accepted reference value.
Note. In contrast to random errors, biases are the sum of systematic errors. Bias may be caused by one or more systematic errors. System error and accepted reference value
The greater the difference, the greater the bias.
[Cited from GB/T 3358.1]
3.2
Combined standard uncertainty combinedstandarduncertainty
u (y)
The standard uncertainty, calculated as the variance of other quantities or (and) the covariance, when the measurement is obtained from several other quantities.
[JJF1059-1999]
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