GB/T 5275.2-2022 English PDFUS$614.00 · In stock
Delivery: <= 5 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 5275.2-2022: Gas analysis - Preparation of calibration gas mixtures using dynamic methods - Part 2: Piston pumps Status: Valid GB/T 5275.2: Historical versions
Basic dataStandard ID: GB/T 5275.2-2022 (GB/T5275.2-2022)Description (Translated English): Gas analysis - Preparation of calibration gas mixtures using dynamic methods - Part 2: Piston pumps Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: G86 Classification of International Standard: 71.100.20 Word Count Estimation: 30,347 Date of Issue: 2022-12-30 Date of Implementation: 2023-07-01 Older Standard (superseded by this standard): GB/T 5275.2-2014 Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration GB/T 5275.2-2022: Gas analysis - Preparation of calibration gas mixtures using dynamic methods - Part 2: Piston pumps---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order. ICS 71.100.20 CCSG86 National Standards of People's Republic of China Replace GB/T 5275.2-2014 Preparation of mixed gas for calibration by dynamic method of gas analysis Part 2.Piston pumps Part 2.Pistonpumps (ISO 6145-2.2014, IDT) Posted on 2022-12-30 2023-07-01 implementation State Administration for Market Regulation Released by the National Standardization Management Committee table of contentsPreface III Introduction IV 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 symbols 2 5 Principles and Equipment 3 5.1 Principle 3 5.2 Device 3 6 Preparation of mixed gas for calibration 5 6.1 Security considerations 5 6.2 Feasibility analysis of preparation of mixed gas 5 6.3 Preparation device and setting the gas mixture composition 6 6.4 Control of input pressure 6 6.5 Temperature control 6 6.6 Uniformity 6 6.7 Stability 6 6.8 Fluctuation of output pressure and flow 6 6.9 Composition of feed gas 7 7 Calculation of volume fraction and related uncertainty assessment 7 7.1 Calculation method A 7 7.2 Calculation method B 8 8 Verification of gas mixture composition 9 Appendix A (Normative) Quantity score of substances 10 A.1 Composition of mixed gas for calibration 10 A.2 Uncertainty assessment of the mass fraction of mixed gas substances 10 Appendix B (informative) Uncertainty assessment of mixed gases 11 B.1 Sources of uncertainty11 B.2 Assess potential sources of uncertainty and calculate uncertainty from major sources12 B.3 Example of 4-component calibration mixed gas 13 B.4 Examples of methods for reducing uncertainty14 Appendix C (informative) Verification of mixed gases 16 C.1 Overview 16 C.2 Comparison with reference gas mixture16 C.3 Verification using a sink-body gauge 17 C.4 Consistency verification of gas mixing pump 17 C.5 Linearity Verification 17 Appendix D (Normative) Calculation Example 19 D.1 Validation requirements19 D.2 Calculation example of the mass fraction of carbon dioxide in nitrogen 19 D.3 Calculation example of nitric oxide mixed gas in nitrogen 20 Appendix NA (Informative) This document makes editorial changes to ISO 6145-2.2014 23 Reference 24 Figure 1 Schematic diagram of the working principle of the piston pump 3 Fig. 2 Schematic diagram of the dynamic method to prepare the mixed gas for two-component calibration 4 Figure B.1 Schematic diagram of a device for preparing a two-component mixed gas by a dynamic method with a temperature control unit and a pulse elimination unit 15 Table B.1 Sources of Uncertainty 11 Table B.2 Uncertainty of main sources (expressed in volume fraction) 12 Table B.3 4-component mixed gas preparation example 13 Table C.1 Verification by comparing the mass fraction of oxygen in nitrogen 16 Table C.2 Use the volume fraction of oxygen in nitrogen to verify consistency 17 Table C.3 Verification of linearity with the volume fraction of oxygen in nitrogen 18 Table D.1 Confirmation example of binary gas mixture 19 Table D.2 Confirmation of the content of carbon dioxide in nitrogen a 20 Table D.3 Spiked mixed gas 20 Table D.4 Analytical data obtained by using the gas mixing pump to calibrate the nitric oxide analyzer a 21 Table D.5 Comparison of spiked mixed gas and curve value 21 Table D.6 Comparison of Curve Coefficients 22 Table D.7 Identification of spiked gases 22 Table NA.1 Editorial changes made in this document to ISO 6145-2.2014 23forewordThis 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 part 2 of GB/T 5275.GB/T 5275 has issued the following parts. --- Part 1.Calibration method; --- Part 2.Piston pumps; --- Part 4.Continuous injection method; --- Part 5.Capillary calibrator; --- Part 6.Critical flow orifices; --- Part 7.Thermal mass flow controllers; --- Part 8.Diffusion method; --- Part 9.Saturation method; --- Part 10.Infiltration method; --- Part 11.Electrochemical generation method. This document replaces GB/T 5275.2-2014 "Preparation of mixed gases for calibration by dynamic volumetric method for gas analysis - Part 2.Volume Pump", compared with GB/T 5275.2-2014, except for structural adjustment and editorial changes, the main technical changes are as follows. --- Added the chapter "Terms and Definitions" (see Chapter 3); --- Added the chapter "Symbols" (see Chapter 4); --- Changed the content related to the principle and equipment (see Chapter 5, Chapter 3 and Chapter 4 of the.2014 edition); --- Added the chapter "Preparation of mixed gas for calibration" (see Chapter 6); ---Changed the calculation of volume fraction and related uncertainty assessment method (see Chapter 7, Chapter 5 of the.2014 edition); --- Added the chapter "Verification of the composition of mixed gases" (see Chapter 8); --- Added the calculation of the amount fraction of the substance and its uncertainty assessment method (see Appendix A); --- Increased calculation examples (see Appendix D). This document identically adopts ISO 6145-2.2014 "Preparation of mixed gas for calibration by dynamic method of gas analysis - Part 2.Piston pump". The following minimal editorial changes have been made to this document. --- For the errata of ISO 6145-2.2014, the editorial changes made to the "References" and their reasons are shown in Appendix NA. Please note that some contents of this document may refer to patents. The issuing agency of this document assumes no responsibility for identifying patents. This document is proposed by China Petroleum and Chemical Industry Federation. This document is under the jurisdiction of the National Gas Standardization Technical Committee (SAC/TC206). This document is drafted by. Institute of Chemistry, China Academy of Testing Technology, Southwest Branch of Haohua Gas Co., Ltd., Shenzhen Nuoanzhi Energy Co., Ltd., Guangdong Huate Gas Co., Ltd., Jiangxi Huate Electronic Chemicals Co., Ltd., Southwest Chemical Research and Design Institute have Co., Ltd., Hangyang Group Co., Ltd., CSSC (Handan) Peric Special Gas Co., Ltd., Sichuan Zhongce Standard Technology Co., Ltd., Zhejiang Research Institute of Chemical Industry Co., Ltd., Zhejiang Standardization Research Institute, Shanghai Shennan Special Gas Co., Ltd., Shanghai Huaai Chromatographic Analysis Technology Co., Ltd. Technology Co., Ltd., Shenzhen Power Supply Bureau Co., Ltd. The main drafters of this document. Wang Weikang, Yuan Fang, Chen Yali, Hu Ying, Xiong Zhihong, Hu Xiaohua, Tan Yiling, Tang Xiamei, Fu Zhuhong, Xu Xiaotian, Liao Hengyi, Gao Fei, Zheng Qiuyan, Zhang Jingpu, Shi Wanjun, Zhang Qiyan, Zhu Dongfeng, Chen Jie, Wu Liang, Fang Hua, Tang Feng, Zhang Ting, Qiu Tingting, Han Xiaoyu, Chen Jingang. This document was first published in.2014, and this is the first revision.IntroductionThe dynamic method is an important method for preparing mixed gases for calibration, and ISO has specially compiled the ISO 6145 series of standards for this purpose. (ISO 6145-3 air flow intermittent injection method has been abolished). GB/T 5275 (all parts) are equivalent to ISO 6145 series standards. Due to the length of the text, ISO 6145 is divided into 11 parts points, GB/T 5275 is consistent with ISO 6145, and is also divided into 11 parts correspondingly. Since ISO 6145-3 has been abolished, GB/T 5275 No. 3 parts are also correspondingly vacant. GB/T 5275 (all parts) specifies the general requirements for the preparation of mixed gases for calibration by the dynamic method, and specifically It specifies the principles, main equipment, preparation precautions, and prepared calibration gas mixtures of nine methods such as volumetric pump method. The technical requirements for the calculation of the volume fraction of the mixed gas components and the evaluation of the uncertainty are to ensure the quality of the prepared mixed gas for calibration and improve the quality of the mixed gas. High level of preparation of calibration gas mixtures. GB/T 5275 (all parts) is intended for use by trained professionals with practical experience. GB/T 5275 consists of 10 parts. --- Part 1.Calibration method. It stipulates the basic information and applicability of each preparation method, precautions for operating the dynamic system, dynamic The calibration method of the system, the calculation of components and uncertainty, and the verification method are the basis of the other 9 parts. purpose is Provide a reasonable selection of one or more methods of preparing mixed gases for calibration and link these methods to national measurement standards To establish the measurement traceability of the composition of the prepared mixed gas. --- Part 2.Piston pumps. The purpose is to provide calibration equipment prepared from two or more pure gases or other mixed gases using a piston pump. The method of mixed gas, and the calculation method and uncertainty evaluation of the content of each component in the prepared mixed gas for calibration Way. --- Part 4.Continuous injection method. The purpose is to provide continuous injection of pure gas or other mixed gas into the balance gas through the syringe. A method for continuously preparing a calibration mixed gas containing two or more components, and the prepared calibration mixed gas Calculation method and uncertainty evaluation method of the content of each component in the compound gas. --- Part 5.Capillary calibrator. The purpose is to provide the use of equipment containing single or multiple capillary combinations from pure gases or Method for continuously preparing mixed gas for calibration with mixed gas, and calculation of the content of each component in the prepared mixed gas for calibration method and uncertainty assessment method. --- Part 6.Critical flow orifices. The purpose is to provide the use of critical flow orifice by two or more pure gas or other used gas A method for preparing a mixed gas for calibration by mixing, and a calculation method for the content of each component in the prepared mixed gas for calibration, and Uncertainty assessment method. --- Part 7.Thermal mass flow controllers. The purpose is to provide the use of thermal mass flow controllers connected by pure gas or mixed gas The method for preparing the mixed gas for calibration, the calculation method of the content of each component in the prepared mixed gas for calibration and the different Certainty assessment method. --- Part 8.Diffusion method. The purpose is to provide a mixture of two or more pure gases or other used gases using the diffusion method The method of preparing the mixed gas for calibration, and the calculation method of the content of each component in the prepared mixed gas for calibration and the uncertainty Quantitative assessment method. --- Part 9.Saturation method. The purpose is to provide a method for the continuous preparation of calibration mixtures from one or more easily condensable gases using the saturation method. The method of mixing gas, and the calculation method and uncertainty evaluation method of the content of each component in the prepared calibration mixed gas. --- Part 10.Infiltration method. The purpose is to provide continuous preparation of mixed gas for calibration from pure gas or mixed gas using permeation method method, and the calculation method of the content of each component in the prepared calibration mixed gas and the method of uncertainty assessment. --- Part 11.Electrochemical generation method. The purpose is to provide a continuous preparation calibration method from pure gas or mixed gas using electrochemical generation method. The method of using the mixed gas, and the calculation method of the content of each component in the prepared mixed gas for calibration and the uncertainty evaluation set the way. Preparation of mixed gas for calibration by dynamic method of gas analysis Part 2.Piston pumps1 ScopeGB/T 5275 (all parts) specifies a variety of dynamic methods for preparing mixed gases for calibration. This document is for GB/T 5275 In Part 2, this document specifies the method of continuously generating a mixed gas for calibration using a piston pump. Pistons by means of geometrical measurements The composition and uncertainty of the prepared calibration mixed gas can be obtained through the calibration of the pump. From pure gas or mixed gas, a mixed gas for calibration containing two or more components can be prepared by using a gas mixing pump body. The gas mixing pump is composed of at least two piston pumps, and each piston pump has a definite stroke ratio and suitable air intake and mixing devices. This document applies only to gaseous mixtures or mixtures of fully vaporizable components. When gas components do not react with each other, nor with When adsorption or reaction occurs on the inner wall of the piston pump, this document is also applicable to the case where corrosive gases are used as raw gas. This document also applies to When mixed gas is used as raw material gas. At the same time, the preparation of multi-component mixed gas and the multi-step dilution preparation process can be considered as two-component mixed gas. In the special case of the preparation of the substance, the method specified in this document can also be used for its preparation. The components of the mixed gas for calibration prepared by the method specified in this document are expressed in the form of volume fraction. Appendix A gives Data conversion equations for volume fractions and substance volume fractions and related uncertainty assessments. When adequate quality assurance measures and measurement controls are in place, the relative expansion of the volume fraction of the gas mixture prepared using this method The development uncertainty can reach the level of no more than 0.5% (coverage factor k=2). Appendix B and Appendix D give the relative expanded uncertainty more Small calculation examples for some special cases. Using the method specified in this document, a dilution ratio of 1.10000 can be achieved. Through multi-stage dilution or dilution with mixed gas, it can Obtain lower volume fraction (can be as low as 1×10-8). The flow range of the final mixed gas can reach 5L/h~500L/h.2 Normative referencesThe contents of the following documents constitute the essential provisions of this document through normative references in the text. Among them, dated references For documents, only the version corresponding to the date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to this document. ISO 7504 Gas Analysis Vocabulary (Gasanalysis-Vocabulary) Note. GB/T 14850-2020 Gas Analysis Vocabulary (ISO 7504.2015, IDT) positiondata) Note. Conversion of GB/T 40870-2021 Gas Analysis Mixed Gas Composition Data (ISO 14912.2003, IDT) ISO /IEC Guide98-3 Uncertainty of measurement - Part 3.Guidelines for expressing uncertainty of measurement [Uncertaintyofmeas- Note. GB/T 27418-2017 Evaluation and representation of measurement uncertainty (ISO /IEC Guide98-3.2008, MOD)3 Terms and DefinitionsThe following terms and definitions apply as defined in ISO /IEC Guide99, ISO /IEC Guide98-3, ISO 14912, ISO 7504 in this document. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 5275.2-2022_English be delivered?Answer: Upon your order, we will start to translate GB/T 5275.2-2022_English as soon as possible, and keep you informed of the progress. The lead time is typically 3 ~ 5 working days. The lengthier the document the longer the lead time.Question 2: Can I share the purchased PDF of GB/T 5275.2-2022_English with my colleagues?Answer: Yes. 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