1、December 2013Translation by DIN-Sprachendienst.English price group 21No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).IC
2、S 75.060!%*Fl“2073573www.din.deDDIN EN ISO 13686Natural gas Quality designation (ISO 13686:2013);English version EN ISO 13686:2013,English translation of DIN EN ISO 13686:2013-12Erdgas Bestimmung der Beschaffenheit (ISO 13686:2013);Englische Fassung EN ISO 13686:2013,Englische bersetzung von DIN EN
3、ISO 13686:2013-12Gaz naturel Dsignation de la qualit (ISO 13686:2013);Version anglaise EN ISO 13686:2013,Traduction anglaise de DIN EN ISO 13686:2013-12SupersedesDIN EN ISO 13686:2007-09www.beuth.deIn case of doubt, the German-language original shall be considered authoritative.Document comprises 54
4、 pages11.13 DIN EN ISO 13686:2013-12 2 A comma is used as the decimal marker. National foreword This document (EN ISO 13686:2013) has been prepared by Technical Committee ISO/TC 193 “Natural gas” in collaboration with Technical Committee CEN/SS N21 “Gaseous fuels and combustible gas” (Secretariat: C
5、CMC). The responsible German body involved in its preparation was the Normenausschuss Gastechnik (Gas Technology Standards Committee), Working Committee NA 032-03-05 AA Gasfrmige Brennstoffe. This standard includes no safety requirements. a) It is intended to include this standard in the body of tec
6、hnical rules and standards for gas issued by the DVGW Deutscher Verein des Gas- und Wasserfaches e. V. (German Technical and Scientific Association for Gas and Water). Amendments This standard differs from DIN EN ISO 13686:2007-09 as follows: a) the standard, including the informative annexes A to G
7、, was checked to ensure that it is up to date. After the final vote, the subject of informative Annex B (DVGW-Arbeitsblatt G 260:2008) was published in March 2013 as a revised version; b) Annex H (informative) “Spanish regulation code (Detail Protocol-01 Measurement) Extract of the relevant parts fo
8、r natural gases” has been added. Previous editions DIN EN ISO 13686: 2007-09 National Annex NA (informative) Bibliography DIN EN ISO 6978-1, Natural gas Determination of mercury Part 1: Sampling of mercury by chemi-sorption on iodine DIN EN ISO 6978-2, Natural gas Determination of mercury Part 2: Sa
9、mpling of mercury by amalga-mation on gold/platinum alloy DIN EN ISO 10723, Natural gas Performance evaluation for on-line analytical systems DIN EN ISO 13734, Natural gas Organic sulfur compounds used as odorants Requirements and test method DIN EN ISO 14111, Natural gas Guidelines to traceability
10、in analysis EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 13686 June 2013 ICS 75.060 Supersedes EN ISO 13686:2005English Version Natural gas - Quality designation (ISO 13686:2013) Gaz naturel - Dsignation de la qualit (ISO 13686:2013) Erdgas - Bestimmung der Beschaffenheit (ISO 13686:2013
11、) This European Standard was approved by CEN on 29 May 2013. 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 bibliographical refer
12、ences 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 of a CEN
13、 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 Macedonia
14、, 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 STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISC
15、HES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2013 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 13686:2013: EContents Page Foreword . 3 Introduction . 4 1 Scope . 5 2 Normative references. 5 3 T
16、erms and definitions 6 4 Symbols, abbreviations and units 10 4.1 Symbols 10 4.2 Abbreviations . 10 4.3 Subscripts . 10 5 Quality designation parameters . 11 5.1 General 11 5.2 Gas composition 11 5.3 Gas properties 12 6 Sampling . 13 Annex A (informative) Introduction to informative annexes . 14 Anne
17、x B (informative) German Regulation Code of Practice DVGW G 260:2008, Extract of the relevant parts for natural gases 22 Annex C (informative) European Standard EN 437 “Test gases, test pressures and categories of appliances” . 26 Annex D (informative) Interchangeability AGA index method 29 Annex E
18、(informative) British Gas Hydrocarbon Equivalence Method 36 Annex F (informative) Weaver index method 41 Annex G (informative) French method for determining gas interchangeability (Delbourg method) (guide for determining the interchangeability of second family gases) . 43 Annex H (informative) Spani
19、sh regulation code (Detail Protocol-01 Measurement) Extract of the relevant parts for natural gases . 49 Annex I (informative) Harmonization of gas property data for cross-border transportation . 50 Bibliography 52 2DIN EN ISO 13686:2013-12EN ISO 13686:2013 (E) This document (EN ISO 13686:2013) has
20、been prepared by Technical Committee ISO/TC 193 Natural gas . This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by December 2013, and conflicting national standards shall be withdrawn at the latest by
21、December 2013. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN ISO 13686:2005. According to the CEN-CENELE
22、C Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Icel
23、and, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 13686:2013 has been approved by CEN as EN ISO 13686:2013 without any modificati
24、on. Foreword“ ”3DIN EN ISO 13686:2013-12 EN ISO 13686:2013 (E) IntroductionThe need for an International Standard concerning the designation of natural gas quality was a basic reason for the establishment of ISO/TC 193 in 1989. Standardization of the designation of quality is specifically stated in
25、the scope of ISO/TC 193. Natural gas, supplying 20 % of the worlds primary energy, is likely to increase its market share greatly. Yet there is currently no generally accepted definition of natural gas quality.To meet this need, it was decided that a general statement of the parameters (i.e. compone
26、nts and properties) recommended should be established and that the resulting International Standard would not specify values of, or limits for, these parameters.Furthermore, it was decided that general-purpose natural gas transmitted to local distribution systems (LDS), referred to as “natural gas”,
27、 should be the first consideration. Thus, this International Standard was developed. Informative annexes are attached as examples of actual natural gas quality specifications that already exist.This International Standard does not impose any quality restrictions on raw gas transported via pipelines
28、or gathering systems to processing or treating facilities.It should be understood that this International Standard covers natural gas at the pipeline level prior to any treatment by LDS for peakshaving purposes. This covers the vast majority of the natural gas that is sold in international trade and
29、 transmitted for custody transfer to local distribution systems.4DIN EN ISO 13686:2013-12EN ISO 13686:2013 (E) 1 ScopeThis International Standard specifies the parameters required to describe finally processed and, where required, blended natural gas. Such gas is referred to subsequently in this tex
30、t simply as “natural gas”.The main text of this International Standard contains a list of these parameters, their units and references to measurement standards. Informative annexes give examples of typical values for these parameters, with the main emphasis on health and safety.In defining the param
31、eters governing composition, physical properties and trace constituents, consideration has also been given to existing natural gases to ensure their continuing viability.The question of interchangeability is dealt with in Annex A (see Clause A.2).2 Normative referencesThe following documents, in who
32、le or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 6326-1, Natural gas Determination o
33、f sulfur compounds Part 1: General introductionISO 6326-3, Natural gas Determination of sulfur compounds Part 3: Determination of hydrogen sulfide, mercaptan sulfur and carbonyl sulfide sulfur by potentiometryISO 6326-5, Natural gas Determination of sulfur compounds Part 5: Lingener combustion metho
34、dISO 6327, Gas analysis Determination of the water dew point of natural gas Cooled surface condensation hygrometersISO 6570, Natural gas Determination of potential hydrocarbon liquid content Gravimetric methodsISO 6974-1, Natural gas Determination of composition and associated uncertainty by gas chr
35、omatography Part 1: General guidelines and calculation of compositionISO 6974-2, Natural gas Determination of composition and associated uncertainty by gas chromatography Part 2: Uncertainty calculationsISO 6974-3, Natural gas Determination of composition with defined uncertainty by gas chromatograp
36、hy Part 3: Determination of hydrogen, helium, oxygen, nitrogen, carbon dioxide and hydrocarbons up to C8 using two packed columnsISO 6974-4, Natural gas Determination of composition with defined uncertainty by gas chromatography Part 4: Determination of nitrogen, carbon dioxide and C1 to C5 and C6+
37、hydrocarbons for a laboratory and on-line measuring system using two columnsISO 6974-5, Natural gas Determination of composition and associated uncertainty by gas chromatography Part 5: Isothermal method for nitrogen, carbon dioxide, C1 to C5 hydrocarbons and C6+ hydrocarbonsISO 6974-6, Natural gas
38、Determination of composition and associated uncertainty by gas chromatography Part 6: Determination of helium, oxygen, nitrogen, carbon dioxide and C1 to C10 hydrocarbons using capaillary columnsISO 6975, Natural gas Extended analysis Gas-chromatographic method5DIN EN ISO 13686:2013-12 EN ISO 13686:
39、2013 (E) ISO 6976:1995, Natural gas Calculation of calorific values, density, relative density and Wobbe index from compositionISO 6978-1, Natural gas Determination of mercury Part 1: Sampling of mercury by chemisorption on iodineISO 6978-2, Natural gas Determination of mercury Part 2: Sampling of m
40、ercury by amalgamation on gold/platinum alloyISO 10101-1, Natural gas Determination of water by the Karl Fischer method Part 1: IntroductionISO 10101-2, Natural gas Determination of water by the Karl Fischer method Part 2: Titration procedureISO 10101-3, Natural gas Determination of water by the Kar
41、l Fischer method Part 3: Coulometric procedureISO 11541, Natural gas Determination of water content at high pressureISO 13443, Natural gas Standard reference conditionsISO 14532, Natural gas VocabularyISO 15970:2008, Natural gas Measurement of properties Volumetric properties: density, pressure, tem
42、perature and compression factorISO 15971:2008, Natural gas Measurement of properties Calorific value and Wobbe indexISO 18453, Natural gas Correlation between water content and water dew pointISO 19739, Natural gas Determination of sulfur compounds using gas chromatographyISO 23874, Natural gas Gas
43、chromatographic requirements for hydrocarbon dewpoint calculation3 Terms and definitionsFor the purposes of this document, the terms and definitions given in ISO 14532 and the following apply.3.1natural gasgaseous fuel obtained from underground sources and consisting of a complex mixture of hydrocar
44、bons, primarily methane, but generally also including ethane, propane and higher hydrocarbons in much smaller amountsNote 1 to entry: It also includes some inert gases, such as nitrogen and carbon dioxide, plus minor amounts of trace constituents.Note 2 to entry: Natural gas remains in the gaseous s
45、tate under the temperature and pressure conditions normally found in service. It is produced by processing raw gas or from liquefied natural gas and, if required, blended to give a gas suitable for direct use. As pipeline quality natural gas, it can then be transmitted within a local distribution sy
46、stem, within a country, or across national borders. It is subject to contractual requirements between buyer and seller, and in some cases to national or state requirements as to quality (see Clause A.1).3.2liquefied natural gasnatural gas which, after processing, has been liquefied for storage or tr
47、ansportation purposesNote 1 to entry: Liquefied natural gas is revaporized and introduced into pipelines for transmission and distribution as natural gas.3.3substitute natural gasmanufactured or blended gas with properties which make it interchangeable with natural gasNote 1 to entry: Substitute nat
48、ural gas is sometimes called synthetic natural gas.6DIN EN ISO 13686:2013-12EN ISO 13686:2013 (E) Note 2 to entry: This also includes gases manufactured by thermal process from biomass.3.4raw gasunprocessed gas taken from well heads through gathering lines to processing facilities3.5local distributi
49、on systemgas mains and services which supply natural gas directly to consumers3.6gas qualityattribute of natural gas by its composition (major components, minor components and trace components) and its physical properties (calorific value, Wobbe index, compression factor, relative density and dew points)3.7reference conditionsstandard reference conditions of temperature, pr
