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GB/T 45133-2025: Gas analysis - The determination of the composition of gas mixtures - Comparison methods based on one-and two-point calibration
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Gas analysis - The determination of the composition of gas mixtures - Comparison methods based on one-and two-point calibration
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GB/T 45133-2025
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Basic data | Standard ID | GB/T 45133-2025 (GB/T45133-2025) | | Description (Translated English) | Gas analysis - The determination of the composition of gas mixtures - Comparison methods based on one-and two-point calibration | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G86 | | Classification of International Standard | 71.100.20 | | Word Count Estimation | 30,315 | | Date of Issue | 2025-01-24 | | Date of Implementation | 2025-08-01 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 45133-2025: Gas analysis - The determination of the composition of gas mixtures - Comparison methods based on one-and two-point calibration
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ICS 71.100.20
CCSG86
National Standard of the People's Republic of China
Gas analysis Determination of the composition of mixed gases
Comparison method based on one-point and two-point calibration
Released on 2025-01-24
2025-08-01 Implementation
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 Symbols 2
5 Abbreviations 2
6 Principle 3
6.1 General requirements 3
6.2 Calibration method 3
7 Main procedures 4
7.1 Preparation before calibration 4
7.2 Operation Process 4
7.3 Calibration and measurement methods 4
8 Performance evaluation of analytical system 7
8.1 General 7
8.2 Sources and alternative methods of performance evaluation data 9
9 Quality Assurance Measures 9
9.1 Confirmation of assumptions 9
9.2 Analytical System Drift or Stability Control 10
10 Results Report 10
10.1 Certificate 10
10.2 Analysis Report 10
Appendix A (Informative) Technical differences between this document and ISO 12963.2017 and their causes 12
Appendix B (Normative) System stability checks required when using the exact match method and the two-point method 13
B.1 General Principles13
B.2 Designing a measurement sequence 13
B.3 Data evaluation and validation 13
Appendix C (Normative) Chapter 7 Statistical knowledge and sensitivity coefficients used 15
Appendix D (Normative) Alternative methods for evaluating uncertainty due to nonlinearity 16
D.1 General 16
D.2 Procedure 16
Appendix E (Informative) Application Example 18
E.1 General 18
E.2 Calibration Settings 18
E.3 Routine calibration 18
E.4 Performance evaluation 20
Appendix F (Informative) Use of calibration methods when no analytical system performance evaluation is performed 22
Reference 24
Foreword
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 is modified to adopt ISO 12963.2017 “Gas analysis for the determination of the composition of mixed gases based on single-point and two-point calibration”
"Comparative Law".
This document has the following structural adjustments compared to ISO 12963.2017.
--- Adjust paragraph 2 in Chapter 1 to paragraph 1;
--- Appendix B adds clauses B.2.1, B.2.2, B.3.1 and B.3.2.
This document has many technical differences compared to ISO 12963.2017.
A single line (|) is used to indicate these technical differences. A list of these technical differences and their reasons is given in Appendix A.
The following editorial changes were made to this document.
--- In order to coordinate with the existing standards, the name of the standard is changed to "Gas Analysis Determination of Mixed Gas Composition Based on Single-point and Two-point Calibration
The comparative law of
--- Incorporated the amendments to ISO 12963.2017/Amd.1.2020, the outer margins of the clauses involved are indicated by vertical
Double lines (‖) are marked;
"calibration" is uniformly changed to "calibration";
---"SPB" in 8.1 is changed to "TPB";
---Added footnotes to Chapter 10;
--- In this document, "measuring system" is changed to "analytical system";
--- The uncertainty U in Appendix E is changed to standard uncertainty u;
--- In Appendix E, "13510" is changed to "13510.0", and "4.70" is changed to "4.7";
--- In Appendix E, "Formula (13)" is changed to "Formula (12)";
--- Add "The uncertainty of the average value of the response value calculated by formula (C.1) and the average value of the response value calculated by formula (C.2)" in Appendix E
Spend".
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 was proposed by the China Petroleum and Chemical Industry Federation.
This document is under the jurisdiction of the National Gas Standardization Technical Committee (SAC/TC206).
This document was drafted by. China Testing Technology Research Institute, Shenzhen Noah Intelligent Co., Ltd., Guangdong Huate Gas
Co., Ltd., Haohua Gas Co., Ltd. Southwest Branch, Huace Testing & Certification Group Co., Ltd., Jiangxi Huate Electronic Chemicals
Co., Ltd., Shenzhen Wofei Technology Co., Ltd., Shanghai Qiyuan Gas Development Co., Ltd., Huizhou Huadatong Gas Manufacturing Co., Ltd.,
Rizhao Institute of Metrology, China Institute of Metrology, Dalian Data Gas Co., Ltd., Beijing Dongfang Xinjiayuan Technology Co., Ltd.,
Chongqing Chaoyang Gas Co., Ltd., Southwest Chemical Research and Design Institute Co., Ltd., Shanghai Huaai Chromatography Analysis Technology Co., Ltd., Zhejiang Provincial Standard
Chemical Research Institute, Zhejiang Chemical Research Institute Co., Ltd., Shenzhen Yiyuntian Electronics Co., Ltd., Beijing Aerospace Metrology and Testing Technology Institute,
Beijing Zhongtian Biaoke Standardization Technology Research Institute Group Co., Ltd.
The main drafters of this document are. Wang Weikang, Li Huaiping, Xiong Huajing, Hu Xiaohua, Zhang Wen, Fu Zhuhong, Xiong Zhihong, Cao Zhonghua, Hu Ying, Chen Yanshan,
Chen Yali, Cai Jin, Jiang Jianping, Li Lei, Kaohsiung, He Ling, Zhao Xin, Tang Xiamei, Liu Zhiyong, Wang Defa, Zhang Tiqiang, Li Fufen, Na Zhaoyu, Xu Kunlin,
Jun Yu, Yupeng Tao, Ningjie Wu, Wanjun Shi, Zhifei He, Feng Liu, Yining Cao, Hao Liu, Hua Fang, Xiaohong Liu, Fang Bu, Chuanshu Zheng, and Yu Chen.
Introduction
The component content of the calibration gas mixture is usually determined by the comparison method. The comparison method based on multi-point calibration is applicable to all calibration gas mixtures.
However, due to the time-consuming, material-consuming and cumbersome operation of multi-point calibration, in many cases, single-point and two-point calibration are used to determine the value of the gas.
The comparison method is used as an alternative method and has been widely used in industrial gases and related fields.
Comparison of single-point and two-point calibration methods can usually provide a balance between the cost, effort and accuracy of determining the content of mixed gas components.
A reasonable balance is achieved; however, one-point and two-point calibrations need to be validated to ensure proper use.
This document provides the applicable conditions, limitations, evaluation of measurement uncertainty, and calculation methods for the comparison method based on single-point and two-point calibration.
and ways of expression.
Gas analysis Determination of the composition of mixed gases
Comparison method based on one-point and two-point calibration
1 Scope
This document specifies the requirements and acceptable limits for different calibration methods when using a minimum number of calibration gas mixtures.
condition.
The methods described in this document are suitable for the following uses.
--- Calibrate the instrument using one or two calibration gas mixtures;
--- Determine the composition of gas samples;
---Evaluate the gas sample set according to the uncertainty of the composition of the calibration gas mixture and the uncertainty component introduced by the measurement process
The uncertainty caused.
The method described in this document uses the mole fraction of a substance to express the composition amount. Other forms of quantity (such as mass fraction, volume fraction or concentration) are not used.
degrees) also applies.
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.
brationgasmixtures)
Note. GB/T 35860-2018 Contents of mixed gas certificate for gas analysis calibration (ISO 6141.2015, IDT)
ISO 6143 Gas analysis - Comparison of mixed gas compositions for determination and calibration
Note. GB/T 10628-2008 Gas analysis calibration gas mixture composition determination and verification comparison method (ISO 6143.2001, IDT)
ISO 7504 Gas analysis-Vocabulary
Note. GB/T 14850-2020 Gas analysis vocabulary (ISO 7504.2015, IDT)
ISO /IEC Guide98-3.2008 Measurement uncertainty Part 3.Guide to the expression of uncertainty in measurement (GUM.1995) [Uncertainty in measurement...
1995)]
Note. GB/T 27418-2017 Evaluation and expression of measurement uncertainty (ISO /IEC Guide 98-3..2008, MOD)
3 Terms and definitions
The following terms and definitions as defined in ISO 7504, ISO /IEC Guide 98-3.2008 and ISO /IEC Guide 99 apply to this document.
document.
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