EN ISO 15971-2014 en Natural gas - Measurement of properties - Calorific value and Wobbe index《天然气 发热值和沃泊指数(ISO 15971 2008)》.pdf
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1、BS ISO15971:2008ICS 75.060NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDNatural gas Measurement ofproperties C alorificvalue and Wobbe indexBS EN ISO 15971:2014BS EN ISO 15971:2014ISBN 978 0 580 83401 1Amendments/corrigenda issued since publicationDate Comment
2、s31 May 2014 This corrigendum renumbers BS ISO 15971:2008 as BS EN ISO 15971:2014.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 January 2009 The British Standards Institution 2014. Published by BSI Standards Limited 2014National foreword
3、This British Standard is the UK implementation of EN ISO 15971:2014. It is identical to ISO 15971:2008. It supersedes BS ISO 15971:2008 which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee PTI/15, Natural Gas and Gas Analysis.A list of organizations represe
4、nted on this committee can be obtained on request to its secretary.The publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations.EUROPEAN STAND
5、ARD NORME EUROPENNE EUROPISCHE NORM EN ISO 15971 March 2014 ICS 75.060 English Version Natural gas - Measurement of properties - Calorific value and Wobbe index (ISO 15971:2008) Gaz naturel - Mesurage des proprits - Pouvoir calorifique et indice de Wobbe (ISO 15971:2008) Erdgas - Messung der Eigensc
6、haften - Wrmewerte und Wobbe-Index (ISO 15971:2008) This European Standard was approved by CEN on 16 February 2014. 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
7、 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). A version in any other languag
8、e 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, Cyprus, Czech Republic, Denmark,
9、Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR
10、STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2014 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 15971:2014 EEN ISO 15971:2014 (
11、E) 3 Foreword The text of ISO 15971:2008 has been prepared by Technical Committee ISO/TC 193 “Natural gas” of the International Organization for Standardization (ISO) and has been taken over as EN ISO 15971:2014. This European Standard shall be given the status of a national standard, either by publ
12、ication of an identical text or by endorsement, at the latest by September 2014, and conflicting national standards shall be withdrawn at the latest by September 2014. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CEN
13、ELEC shall not be held responsible for identifying any or all such patent rights. 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 Repub
14、lic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endor
15、sement notice The text of ISO 15971:2008 has been approved by CEN as EN ISO 15971:2014 without any modification. BS EN ISO 15971:2014EN ISO 15971:2014 (E)BS ISO 15971:2008ISO 15971:2008(E) ISO 2008 All rights reserved iiiContents PageForeword ivIntroduction v1Scope. 12Normative references. 13Terms a
16、nd definitions. 13.1 Calorific value and Wobbe index 13.2 Water content of gas 23.3 Performance classification 23.4 Terms from metrology 34Principles of measurement 44.1 Introduction. 44.2 Direct combustion calorimetry 54.3 Indirect methods. 54.4 Inferential methods. 65Performance assessment and acc
17、eptance tests.75.1 Performance assessment for instrument selection 75.2 Factory and site acceptance tests 206Sampling and installation guidelines . 216.1 Sampling 216.2 Installation guidelines 227Calibration. 257.1 Calibration procedures. 257.2 Calibration gases 268Verification 278.1 Verification pr
18、ocedures 278.2 Verification gases. 289Maintenance 299.1 Preventive maintenance. 299.2 Corrective maintenance. 2910 Quality control. 2910.1 General. 2910.2 Environmental parameters and ancillary equipment 3110.3 Instrumental factors . 32Annex A (normative) Symbols and units.33Annex B (informative) Ex
19、amples of type-approval and technical specifications 34Annex C (informative) Class 0 mass-basis calorimetry. 36Annex D (informative) Direct combustion calorimetry. 40Annex E (informative) Stoichiometric combustion devices.43Annex F (informative) Effect of non-alkane gases on stoichiometric combustio
20、n devices.47Annex G (informative) Measurement of Wobbe index 48Bibliography. 49BS EN ISO 15971:2014ISO 15971:2008(E)BS ISO 15971:2008ISO 15971:2008(E)iv ISO 2008 All rights reservedForeword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodie
21、s (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member bodyinterested in a subject for which a technical committee has beenestablished has the right to be represented on that committee. International organizations, g
22、overnmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closelywith the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IE
23、C Directives, Part 2.The main task of technical committees is to prepare International Standards. Draft International Standardsadopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member
24、 bodies casting a vote. 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 responsible for identifying any or all such patent rights. ISO 15971 was prepared by Technical Committee ISO/TC 193, Natural gas. BS EN
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