EN ISO 6145-6-2017 en Gas analysis - Preparation of calibration gas mixtures using dynamic methods - Part 6 Critical flow orifices.pdf
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1、Gas analysis - Preparation of calibration gas mixtures using dynamic methodsPart 6: Critical flow orificesBS EN ISO 6145-6:2017BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 6145-6 August 2017 ICS 71.040.40 Su
2、persedes EN ISO 6145-6:2008English Version Gas analysis - Preparation of calibration gas mixtures using dynamic methods - Part 6: Critical flow orifices (ISO 6145-6:2017) Analyse des gaz - Prparation des mlanges de gaz pour talonnage laide de mthodes volumtriques dynamiques - Partie 6: Orifices de d
3、bit critiques (ISO 6145-6:2017) Gasanalyse - Herstellung von Kalibriergasgemischen mit Hilfe von dynamisch-volumetrischen Verfahren - Teil 6: Kritische Dsen (ISO 6145-6:2017) This European Standard was approved by CEN on 7 August 2017. CEN members are bound to comply with the CEN/CENELEC Internal Re
4、gulations which stipulate the conditions for giving this European Standard the status of a 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 me
5、mber. This European Standard exists in three official versions (English, French, German). 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.
6、 CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Polan
7、d, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United 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 exploi
8、tation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 6145-6:2017 ENational forewordThis British Standard is the UK implementation of EN ISO 6145-6:2017. It supersedes BS EN ISO 6145-6:2008, which is withdrawn.The UK participation in its preparation was ent
9、rusted 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 publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct applicat
10、ion. The British Standards Institution 2017 Published by BSI Standards Limited 2017ISBN 978 0 580 79572 5ICS 71.040.40Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committe
11、e on 30 September 2017.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS EN ISO 6145-6:2017EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 6145-6 August 2017 ICS 71.040.40 Supersedes EN ISO 6145-6:2008English Version Gas analysis - Preparation of calibration
12、 gas mixtures using dynamic methods - Part 6: Critical flow orifices (ISO 6145-6:2017) Analyse des gaz - Prparation des mlanges de gaz pour talonnage laide de mthodes volumtriques dynamiques - Partie 6: Orifices de dbit critiques (ISO 6145-6:2017) Gasanalyse - Herstellung von Kalibriergasgemischen m
13、it Hilfe von dynamisch-volumetrischen Verfahren - Teil 6: Kritische Dsen (ISO 6145-6:2017) This European Standard was approved by CEN on 7 August 2017. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the statu
14、s of a 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, Ger
15、man). 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, Croati
16、a, Cyprus, 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
17、 and United 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
18、. No. EN ISO 6145-6:2017 EBS EN ISO 6145-6:2017EN ISO 6145-6:2017 (E) 3 European foreword This document (EN ISO 6145-6:2017) 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 i
19、dentical text or by endorsement, at the latest by February 2018, and conflicting national standards shall be withdrawn at the latest by February 2018. 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 responsib
20、le for identifying any or all such patent rights. This document supersedes EN ISO 6145-6:2008. 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
21、, 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 the
22、United Kingdom. Endorsement notice The text of ISO 6145-6:2017 has been approved by CEN as EN ISO 6145-6:2017 without any modification. ISO 6145-6:2017(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The w
23、ork of preparing 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-govern
24、mental, in liaison 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 t
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