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JJF 1344-2023 English PDF

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JJF 1344-2023: Production of Gas Reference Materials
Status: Valid

JJF 1344: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
JJF 1344-2023English359 Add to Cart 4 days [Need to translate] Production of Gas Reference Materials Valid JJF 1344-2023
JJF 1344-2012English559 Add to Cart 3 days [Need to translate] General Technical Requirements for Producing Gas Reference Materials Obsolete JJF 1344-2012
JJF 1344-1990English199 Add to Cart 2 days [Need to translate] O.T.N. of Secondary Standard for 2πα 2πβ Particle Emission Rate Obsolete JJF 1344-1990

Standard similar to JJF 1344-2023

JJF 1033   JJF 1030   JJF 1343   

Basic data

Standard ID JJF 1344-2023 (JJF1344-2023)
Description (Translated English) Production of Gas Reference Materials
Sector / Industry Metrology & Measurement Industry Standard
Word Count Estimation 17,130
Date of Issue 2023-06-30
Date of Implementation 2023-12-30
Issuing agency(ies) State Administration for Market Regulation

JJF 1344-2023: Production of Gas Reference Materials

---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.
National Metrology Technical Specifications of the People's Republic of China Development of Gas Standard Materials Published on 2023-06-30 Implemented on 2023-12-30 Released by the State Administration for Market Regulation Development of Gas Standard Materials Replace JJF 1344-2012 Responsible unit. National Technical Committee for Measurement of Reference Materials Main drafting unit. China Institute of Metrology China Institute of Testing Technology Participating unit in the drafting. Environmental Development Center of the Ministry of Ecology and Environment Beijing University of Chemical Technology Chongqing Institute of Metrology and Quality Inspection This specification entrusts the National Technical Committee for Measurement of Reference Materials to be responsible for interpretation The main drafters of this specification. Ni Xiaoli (Chinese Institute of Metrology) Wu Hai (China Institute of Metrology) Pan Yi (China Institute of Testing Technology) Hu Shuguo (China Institute of Metrology) Participating drafters. Li Ning (Environmental Development Center of the Ministry of Ecology and Environment) Li Zenghe (Beijing University of Chemical Technology) Hu Delong (Chongqing Institute of Metrology and Quality Inspection)

Table of contents

Introduction(Ⅱ) 1 Scope(1) 2 Cited documents(1) 3 Terms and Definitions(1) 3.1 Gas reference materials(2) 3.2 Nominal working pressure(2) 3.3 Critical impurities(2) 3.4 Important impurities(2) 3.5 Comparative method (2) 4 Overview(2) 4.1 Naming(2) 4.2 Representation of characteristic values (3) 4.3 Project planning(3) 5 Preparation of mixed gas (3) 5.1 Raw materials and gas cylinders(3) 5.2 Preparation requirements (4) 6 fixed value(5) 6.1 Selection of setting method (5) 6.2 Weighing legal value(5) 6.3 Comparing statutory values(7) 7 Pressure release test and stability study(8) 7.1 Pressure release test research(8) 7.2 Stability study(8) 8 Assignment(9) 8.1 Certified value(9) 8.2 Uncertainty of the certified value(9) 8.3 Verification of certified values(10) 8.4 Result expression(10) 9 Magnitude comparison(10) 10 Certificates and Labels(11) 10.1 Certificate(11) 10.2 Tags(11)

Introduction

This specification is a revision of JJF 1344-2012 "General Technical Requirements for the Development (Production) of Gas Reference Materials". This revision mainly refers to the following specifications, standards and other documents. JJF 1135-2005 Chemical analysis measurement uncertainty evaluation JJF 1342-2022 General requirements for reference material development (production) institutions JJF 1343-2022 Value setting and uniformity and stability evaluation of standard materials JJF 1507-2015 Selection and application of standard materials GB/T 5274.1-2018 Preparation of mixed gases for gas analysis calibration Part 1.Preparation by weighing method Class 1 mixed gas (ISO 6142-1.2015, IDT) GB/T 10628-2008 Determination and verification comparison method of gas analysis calibration gas mixture composition (ISO 6143. 2001,IDT) ISO 12963-2017 Gas analysis Determination of the composition of gas mixtures Comparative method based on single-point and two-point calibration ISO 14167-2018 General quality requirements and metrological traceability of calibration gas mixtures for gas analysis ISO 19229-2019 Gas Analysis Purity Analysis and Processing of Purity Data This specification basically retains the main chapters and contents of JJF 1344-2012 in the revision. The revision mainly includes. ---In terms of specification structure, the original "packaging and storage" part has been deleted and the "8 assignment" part has been added. At the same time, the "fixed value" part is adjusted before the "pressure release test and stability study"; ---Added terms and definitions such as key impurities (see 3.3, 3.4), and refined the requirements for impurity analysis in raw materials (see 5.1); ---Added "4.3 Project Planning" requirements; ---Supplemented the risk assessment and preparation requirements for flammability, toxicity, etc. during the preparation process of mixed gases (see 5.2); ---Supplemented the requirements for batch quantity for pressure relief tests and stability studies (see 7.1 and 7.2); ---Refined the value setting requirements of the weighing method (see 6.2), verification of certified values (see 8.3), and refined the comparison method Requirements such as method confirmation of fixed value and measurement model (see 6.3); The previous version releases replaced by this specification are. ---JJF 1344-2012. Development of Gas Standard Materials

1 Scope

This specification stipulates the project planning, preparation, value setting, pressure release test and stability study of gas reference materials. Requirements for certainty assessment, value assignment, comparison of quantities, preparation of certificates and labels, etc. This specification applies to the development of gas reference materials using weighing methods or comparative legal values. Other gas standards The development of quasi-materials can be implemented as a reference.

2 cited documents

This specification references the following documents. JJF 1005 Common terms and definitions of reference materials JJF 1059.1 Evaluation and expression of measurement uncertainty JJF 1186 Reference material certificate and labeling requirements JJF 1342 General requirements for reference material development (production) institutions JJF 1343 Value setting and uniformity and stability evaluation of standard materials GB/T 5274.1-2018 Preparation of mixed gases for gas analysis calibration Part 1.Preparation by weighing method Class 1 mixed gas (ISO 6142-1.2015, IDT) GB/T 5275 (all parts) Gas analysis - Preparation of calibration gas mixtures by dynamic volume method (ISO 6145, IDT) GB/T 10628 Determination and calibration comparison method of gas analysis calibration gas mixture composition (ISO 6143, IDT) GB/T 14850 Gas Analysis Vocabulary (ISO 7504, IDT) GB/T 16804 Gas cylinder warning label GB/T 27417-2017 Guidelines for Validation and Validation of Chemical Analysis Methods for Conformity Assessment GB/T 34710 (all parts) Classification of mixed gases ISO 12963 Gas analysis Determination of gas mixture composition (Gas basedonone-andtwo-pointcalibration) For dated references, only the dated version applies to this specification; for undated references, only the dated edition applies. The latest version (including all modification orders) shall apply to this specification.

3 Terms and definitions

Standard materials, matrix standard materials, uniformity, stability, characteristic values, fixed values, and assignments specified in JJF 1005 Value, validity period and other terms, balance gas, impurities, saturated vapor pressure, calibration function, etc. specified in GB/T 14850 Point calibration, double-point calibration, single-point calibration, minimum operating pressure, minimum operating temperature, weighing method, pressure method, substance Terms such as quantity fraction and the following terms are applicable to this specification.

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