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RB/T 141-2018: Evaluation of measurement uncertainty in the chemical testing field. Applying quality control and method validation data to evaluate measurement uncertainty
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Evaluation of measurement uncertainty in the chemical testing field. Applying quality control and method validation data to evaluate measurement uncertainty
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RB/T 141-2018
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Basic data | Standard ID | RB/T 141-2018 (RB/T141-2018) | | Description (Translated English) | Evaluation of measurement uncertainty in the chemical testing field. Applying quality control and method validation data to evaluate measurement uncertainty | | Sector / Industry | Chinese Industry Standard (Recommended) | | Classification of Chinese Standard | A00 | | Classification of International Standard | 03.120.20 | | Word Count Estimation | 32,325 | | Date of Issue | 2018-06-04 | | Date of Implementation | 2018-12-01 | | Regulation (derived from) | National Certification Section (2018) No. 31 | | Issuing agency(ies) | National Certification and Accreditation Administration | | Summary | This standard specifies the measurement uncertainty assessment based on quality control and validation data under system control. This standard applies to the measurement uncertainty assessment of chemical testing laboratories. | RB/T 141-2018: Evaluation of measurement uncertainty in the chemical testing field. Applying quality control and method validation data to evaluate measurement uncertainty
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Evaluation of measurement uncertainty in the chemical testing field.Applying quality control and method validation data to evaluate measurement uncertainty
ICS 03.120.20
A00
People's Republic of China certification and recognition of industry standards
Evaluation of measurement uncertainty in the field of chemical detection
Use data quality control and methods to confirm data assessment
uncertainty
Published on.2018-06-04
2018-12-01 implementation
China National Certification and Accreditation Administration issued
Content
Foreword III
Introduction IV
1 Scope 1
2 Normative references 1
3 Terms and Definitions 1
4 General 3
5 Performance test of the measurement system 3
5.1 AD test 3
5.2 h/k test 4
6 Evaluation of precision uncertainty components during the period 4
6.1 Stable sample analysis 4
6.2 Standard solution sample analysis 4
6.3 Unsteady sample analysis 5
7 Assessment of bias uncertainty components 5
7.1 CS analysis 5
7.2 ILC and PT Analysis 5
7.3 Standardized recovery experiment analysis 5
8 Representation of Uncertainty Evaluation and Example 6
Appendix A (Normative Appendix) Statistical Table 7
Appendix B (informative appendix) Example 10 of uncertainty assessment
Reference 28
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard uses the redrafting method with reference to ISO 11352.2012 "Water quality based on uncertainty of measurement and quality control data measurement uncertainty.
Estimate (Waterquality-Estimationofmeasurementuncertaintybasedonvalidationandqualitycontrol
Data) is formulated to be non-equivalent to ISO 11352.2012.
The main differences between this standard and ISO 11352.2012 are as follows.
--- Introducing Anderson Darling (AD) statistical test and normal probability value pi table for determining the measurement system
Whether the system is under statistical control;
--- Introducing Mandel h/k statistical test and h and k threshold table to determine whether the measurement system is consistent
status;
--- According to the domestic situation, Appendix B has been added.
This standard is proposed and managed by the National Certification and Accreditation Administration.
This standard was drafted. China National Accreditation Center for Conformity Assessment, China Center for Disease Control and Prevention, Environmental and Health-related Product Safety
Institute of Jiangsu Province Product Quality Supervision and Inspection Institute, Nantong University Affiliated Hospital, Inner Mongolia Mengniu Dairy (Group) Co., Ltd., National Circle
Horizon Analysis and Testing Center, Aussie Analytical Testing (Shanghai) Co., Ltd., Sinopec Refinery Engineering (Group) Co., Ltd., Luoyang Technology R&D
Center, Rizhao City Environmental Monitoring Station, China National Scientific Research (Beijing) Standardization Technology Research Institute.
The main drafters of this standard. Sun Hairong, Wang Douwen, Yang Lanlan, Chen Yu, Wang Huimin, Ma Wenli, Li Yuwu, Yang Yuanhua, Bai Zhengwei,
Chen Yanqing, Song Xiaodong, Sun Peiqin, Shan Geng, Fu Hongkun, Gao Wei, Jia Wei, Pan Hong, Sun Xiaoling, Li Sisi, Ding Changming, Chen Yu, Lin Limin, Li Wei,
Ding Guiying, Yang Shuyu, Han Xiaoze.
Introduction
This standard complies with the original "7.6 Measurement Uncertainty Assessment" in ISO /IEC 17025.2017 "General Requirements for Testing and Calibration Laboratory Capabilities"
Then, refer to GB/Z 22553-2010 "Guidelines for assessing measurement uncertainty using estimates of repeatability, reproducibility and correctness",
Using a top-down technique, a convenient method for assessing measurement uncertainty in a test laboratory is provided.
Under the condition of precision measurement, this standard confirms the data based on the quality control results and methods, and combines the cumulative effects brought by the two.
As an estimate of uncertainty.
Evaluation of measurement uncertainty in the field of chemical detection
Use data quality control and methods to confirm data assessment
uncertainty
1 Scope
This standard specifies the measurement uncertainty assessment based on quality control and validation data under system control.
This standard applies to the measurement uncertainty assessment of chemical testing laboratories.
2 Normative references
The following documents are indispensable for this document. For dated references, only the dated version applies to this document. all
For undated references, the latest edition (including all amendments) applies to this document.
GB/T 3358.2-2009 Statistical vocabulary and symbols - Part 2. Application statistics
GB/T 27043-2012 General requirements for conformity assessment
GB/T 27407-2010 Laboratory quality control using statistical quality assurance and control chart technology evaluation analysis measurement system
performance
GB/T 27411-2012 Commonly used uncertainty assessment methods and representations in testing laboratories
GB/T 28043-2011 Statistical method for proficiency testing using inter-laboratory comparison
JJF1001-1001 General Measurement Terms and Definitions
3 Terms and definitions
The following terms and definitions apply to this document.
3.1
Accept reference value acceptedreferencevalue, ARV
Used as a negotiated agreed standard value for comparison.
Note. Accepted reference values come from.
a) theoretical or determined values based on scientific principles;
b) a specified or certified value based on experimental work by some national or international organization;
c) an agreed or certified value based on collaborative experimental work sponsored by a scientific or engineering organization;
d) When a) b) c) is not available, the expected value is used, ie the mean of the set of measurements is specified.
[GB/T 3358.2-2009, definition 3.2.7]
3.2
Quality control sample qualitycontrolsample, QCS
Stores a complete, well-used, stable and homogenized sample with physical or chemical properties similar to conventional samples of the system
The precision and stability of the system is determined and monitored under density conditions.
Note. Changed from GB/T 27407-2010, 3.1.19.
3.3
Check sample checksample, CS
Samples that accept reference values are included in the quality control measurements.
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