1、Gas analysis - Handling of calibration gases and gas mixtures - GuidelinesBS EN ISO 16664:2017BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 16664 June 2017 ICS 71.040.40 Supersedes EN ISO 16664:2008English Ve
2、rsion Gas analysis - Handling of calibration gases and gas mixtures - Guidelines (ISO 16664:2017) Analyse des gaz - Mise en oeuvre des gaz et des mlanges de gaz pour talonnage - Lignes directrices (ISO 16664:2017) Gasanalyse - Handhabung von Kalibriergasen und Gasgemischen - Richtlinien (ISO 16664:2
3、017) This European Standard was approved by CEN on 19 September 2016. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographi
4、cal references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility
5、 of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of
6、Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMA
7、LISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2017 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 16664:2017 ENational forewordThis British Standard is the UK implemen
8、tation of EN ISO 16664:2017. It supersedes BS EN ISO 16664:2008, which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee PTI/15, Natural Gas and Gas Analysis.A list of organizations represented on this committee can be obtained on request to its secretary.This
9、 publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2017 Published by BSI Standards Limited 2017ISBN 978 0 580 93030 0ICS 71.040.40Compliance with a British Standard cannot confer im
10、munity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 August 2017.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS EN ISO 16664:2017EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM
11、 EN ISO 16664 June 2017 ICS 71.040.40 Supersedes EN ISO 16664:2008English Version Gas analysis - Handling of calibration gases and gas mixtures - Guidelines (ISO 16664:2017) Analyse des gaz - Mise en oeuvre des gaz et des mlanges de gaz pour talonnage - Lignes directrices (ISO 16664:2017) Gasanalyse
12、 - Handhabung von Kalibriergasen und Gasgemischen - Richtlinien (ISO 16664:2017) This European Standard was approved by CEN on 19 September 2016. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a
13、 national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German).
14、A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyp
15、rus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and U
16、nited Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2017 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No.
17、EN ISO 16664:2017 EBS EN ISO 16664:2017EN ISO 16664:2017 (E) 2 European foreword This document (EN ISO 16664:2017) has been prepared by Technical Committee ISO/TC 158 “Analysis of gases“. This European Standard shall be given the status of a national standard, either by publication of an identical t
18、ext or by endorsement, at the latest by December 2017, and conflicting national standards shall be withdrawn at the latest by December 2017. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN shall not be held responsible for ide
19、ntifying any or all such patent rights. This document supersedes EN ISO 16664:2008. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Rep
20、ublic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United King
21、dom. Endorsement notice The text of ISO 16664:2017 has been approved by CEN as EN ISO 16664:2017 without any modification. ISO 16664:2017(E)Foreword ivIntroduction v1 Scope . 12 Normative references 13 Terms and definitions . 14 Transport and storage 34.1 General remarks 34.2 Low temperature. 34.3 H
22、igh temperature 44.4 Water . 44.5 Storage and handling . 45 Mode of withdrawal . 45.1 General . 45.2 Minimum utilization pressure . 45.3 Temperature 55.4 Pressure reduction and flow . 55.5 Replacement, change of cylinder positions 56 Transfer system . 56.1 Purging procedure . 56.2 Considerations whe
23、n designing and constructing gas transfer lines 66.2.1 Modes of gas sampling 66.2.2 Pressure- and flow-reducing equipment 76.2.3 Material for the construction of transfer lines . 76.2.4 General methods and examples of sampling systems 107 Stability .13Annex A (informative) Check on the stability of
24、calibration gas mixtures by end-users 14Bibliography .16 ISO 2017 All rights reserved iiiContents PageBS EN ISO 16664:2017ISO 16664:2017(E)Foreword ivIntroduction v1 Scope . 12 Normative references 13 Terms and definitions . 14 Transport and storage 34.1 General remarks 34.2 Low temperature. 34.3 Hi
25、gh temperature 44.4 Water . 44.5 Storage and handling . 45 Mode of withdrawal . 45.1 General . 45.2 Minimum utilization pressure . 45.3 Temperature 55.4 Pressure reduction and flow . 55.5 Replacement, change of cylinder positions 56 Transfer system . 56.1 Purging procedure . 56.2 Considerations when
26、 designing and constructing gas transfer lines 66.2.1 Modes of gas sampling 66.2.2 Pressure- and flow-reducing equipment 76.2.3 Material for the construction of transfer lines . 76.2.4 General methods and examples of sampling systems 107 Stability .13Annex A (informative) Check on the stability of c
27、alibration gas mixtures by end-users 14Bibliography .16 ISO 2017 All rights reserved iiiContents PageBS EN ISO 16664:2017ISO 16664:2017(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing
28、 International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liais
29、on with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Direc
30、tives, Part 1. In particular the different approval criteria needed for the different types of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/ directives).Attention is drawn to the possibility that
31、some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent decl
32、arations received (see www .iso .org/ patents).Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement.For an explanation on the voluntary nature of standards, the meaning of ISO specific terms and expressions related to conformit
33、y assessment, as well as information about ISOs adherence to the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following URL: www .iso .org/ iso/ foreword .htmlThis document was prepared by Technical Committee ISO/TC 158, Analysis of gases.This second edi
34、tion cancels and replaces the first edition (ISO 16664:2004), which has been technically revised. The major changes are the following: Figures 1 and 5 have been revised to more clearly depict the arrangements; several references and terminological entries have been updated.iv ISO 2017 All rights res
35、ervedBS EN ISO 16664:2017ISO 16664:2017(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member b
36、ody interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electro
37、technical Commission (IEC) on all matters of electrotechnical standardization.The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of I
38、SO documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/ directives).Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held
39、 responsible for identifying any or all such patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www .iso .org/ patents).Any trade name used in this document is informati
40、on given for the convenience of users and does not constitute an endorsement.For an explanation on the voluntary nature of standards, the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the World Trade Organization (WTO)
41、principles in the Technical Barriers to Trade (TBT) see the following URL: www .iso .org/ iso/ foreword .htmlThis document was prepared by Technical Committee ISO/TC 158, Analysis of gases.This second edition cancels and replaces the first edition (ISO 16664:2004), which has been technically revised
42、. The major changes are the following: Figures 1 and 5 have been revised to more clearly depict the arrangements; several references and terminological entries have been updated.iv ISO 2017 All rights reserved ISO 16664:2017(E)IntroductionThis document uses the terms “calibration gas” for both gas m
43、ixtures and pure gases as the limiting case of gas mixtures.The quality of calibration gases in cylinders as certified by producers is defined bya) the correct analyte content;b) a known uncertainty which is appropriate for its intended use;c) the stability;d) the homogeneity.During its utilization
44、period, the quality of calibration gases is influenced by storage conditions at the manufacturers and users sites; transport conditions; modes of calibration gas withdrawal and transfer; the transfer system employed. ISO 2017 All rights reserved vBS EN ISO 16664:2017BS EN ISO 16664:2017Gas analysis
45、Handling of calibration gases and gas mixtures GuidelinesSAFETY PRECAUTIONS National and international safety regulations concerning storage, use and transportation of pure gases and gas mixtures are to be followed in addition to this document.1 ScopeThis document describes factors that may influenc
46、e the composition of pure gases and homogeneous gas mixtures used for calibration purposes. This document only applies to gases or gas mixtures that are within the “utilization period”. It provides the following guidelines for the handling and use of calibration gas mixtures: storage of calibration
47、gas cylinders; calibration gas withdrawal from cylinders; transfer of calibration gas from cylinders to the point of calibration.It also outlines a method of assessing the stability of a gas mixture, taking into account the gas composition uncertainty given on the certificate and the users measureme
48、nt uncertainty.2 Normative referencesThere are no normative references in this document.3 Terms and definitionsFor the purposes of this document, the following terms and definitions apply.ISO and IEC maintain terminological databases for use in standardization at the following addresses: IEC Electro
49、pedia: available at http:/ www .electropedia. org/ ISO Online browsing platform: available at http:/ www. iso. org/ obp3.1calibration gaspure gas or gas mixture used for calibration3.2calibration gas mixturegas mixture of known stability (3.9) and homogeneity (3.4) whose composition is well established for use in the calibration or verification of a measuring instrument or for the validation of a measurementNote 1 to entry: Calibration gas mixtures are measurement standards (Annex A) as defined in ISO/IEC Guide 99:2007.SOURCE:
