1、October 2009DEUTSCHE NORM English price group 14No part of this standard 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).ICS 75.060; 75.160.30!$Z-q
2、“1551078www.din.deDDIN EN ISO 15403-1Natural gas Natural gas for use as a compressed fuel for vehicles Part 1: Designation of the quality (ISO 15403-1:2006)English version of DIN EN ISO 15403-1:2009-10Erdgas Erdgas als verdichteter Kraftstoff fr Fahrzeuge Teil 1: Bestimmung der Beschaffenheit (ISO 1
3、5403-1:2006)Englische Fassung DIN EN ISO 15403-1:2009-10SupersedesDIN EN ISO 15403:2007-08www.beuth.deDocument comprises pages30 2 National foreword This standard has been prepared by Technical Committee ISO/TC 193 “Natural gas” and has been adopted as EN ISO 15403-1:2008 by Technical Committee CEN/
4、SS N21 “Gaseous fuels and combustible gas” (Secretariat: CMC). The responsible German body involved in its preparation was the Normenausschuss Gastechnik (Gas Technology Standards Committee), Technical Committee NA 032-03-07 AA Gasversorgung fr erdgas-betriebene Fahrzeuge. This standard supersedes D
5、IN EN ISO 15403:2007-08, the content of which remains largely the same. As with the previous edition, this document does not lay down any specifications; rather, it describes the most important qualities of natural gas used as fuel. DIN EN ISO 15403-1: 2009-10 However, this standard does not replace
6、 the German national standard DIN 51624:2008-02, Automotive fuels Compressed natural gas Requirements and test methods, which lays down essential quality requirements for natural gas dispensed at petrol filling stations and serves to meet the requirements of the new edition of the 10thOrdinance on t
7、he Implementation of the German Federal Immission Control Act (10. BImSchV). ISO 15403 consists of the following parts, under the general title Natural gas Natural gas for use as a compressed fuel for vehicles: Part 1: Designation of the quality Part 2: Specification of the quality (Technical Report
8、) Amendments This standard differs from DIN EN ISO 15403:2007-08 as follows: a) The terms and definitions have been brought in line with those specified in DIN EN ISO 14532. b) The international requirements for natural gas used as motor fuel have been harmonized. Previous editions DIN EN ISO 15403:
9、 2007-08 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 15403-1 January 2008 ICS 75.060 English Version Natural gas - Natural gas for use as a compressed fuel for vehicles - Part 1: Designation of the quality (ISO 15403-1:2006)Gaz naturel - Gaz naturel pour usage comme carburant comprim po
10、ur vhicules - Partie 1: Dsignation de la qualit (ISO 15403-1:2006) Erdgas - Erdgas als verdichteter Kraftstoff fr Fahrzeuge - Teil 1: Bestimmung der Beschaffenheit (ISO 15403-1:2006)This European Standard was approved by CEN on 15 December 2007. CEN members are bound to comply with the CEN/CENELEC I
11、nternal 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 references concerning such national standards may be obtained on application to the CEN Management Centre or to any CEN
12、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 member into its own language and notified to the CEN Management Centre has the same status as the official versions. CEN m
13、embers are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Swede
14、n, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2008 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. R
15、ef. No. EN ISO 15403-1:2008: EContents Page DIN EN ISO 15403-1: 2009-10 2 EN ISO 15403-1:2008 (E) Foreword .3 Introduction.4 1 Scope5 2 Normative references5 3 Terms and definitions .5 4 Symbols and abbreviations13 5 Gas composition requirements .14 6 Gas properties .15 7 Driveability .16 8 Test met
16、hods .16 9 Sampling 17 Annex A (informative) Propane and butane content .18 Annex B (informative) Wobbe index range.20 Annex C (informative) Engine knock 22 Annex D (informative) Methane number and octane number.23 Annex E (informative) Water content of natural gas .26 Bibliography27 Foreword The te
17、xt of ISO 15403-1:2006 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 15403-1:2008 by Technical Committee CEN/SS N21 “Gaseous fuels and combustible gas”, the secretariat of which is held
18、by CMC. 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 July 2008, and conflicting national Standards shall be withdrawn at the latest by July 2008. Attention is drawn to the possibility that some
19、 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. According to the CEN/CENELEC Internal Regulations, the national Standards organizations of the following countries are bound to imple
20、ment this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland
21、and the United Kingdom. Endorsement notice The text of ISO 15403-1:2006 has been approved by CEN as EN ISO 15403-1:2008 without any modifications. DIN EN ISO 15403-1: 2009-10 3 EN ISO 15403-1:2008 (E) Introduction Natural gas has been used to some extent as a fuel for internal combustion engines in
22、compressor stations, co-generation systems, and vehicles of various types for many years now. However, the prerequisites for growth, i.e. economic viability and fuel availability, were generally not satisfied. Now, with the natural gas industry well established, supplying 20 % of the worlds primary
23、energy, and the need for alternative, low-emission fuels, the situation has improved considerably. During the past decade, natural gas vehicles have become a viable option with some five millions units now in use around the world. Growth is continuing as many governments actively promote this clean-
24、burning fuel with its environmental benefits. Many fleet operators are converting their vehicles, and vehicle manufacturers are developing and marketing dedicated natural gas equipment. In the context of this International Standard, natural gas vehicles (NGVs) utilize compressed natural gas stored “
25、on-board”. The pressure of the gas stored in multiple containers is up to a maximum 25 000 kPa. Although the pressure has to be reduced before combustion, compression and storage gives NGVs an adequate range. While NGVs were initially equipped with converted gasoline or diesel engines, high-performa
26、nce, dedicated natural gas engines are now being extensively developed and produced. Liquefied natural gas (LNG) may also be stored in the fuel tanks of natural gas vehicles. This, however, will be the subject of a separate International Standard. This part of ISO 15403 for the quality designation o
27、f compressed natural gas is designed to stipulate the international requirements placed on the natural gas used as a motor fuel. Engine and vehicle manufacturers must know these requirements so they can develop high-performance equipment which runs on compressed natural gas. A technical report givin
28、g detailed data on the gas compositions used in this part of ISO 15403 is being published as ISO/TR 15403-2. DIN EN ISO 15403-1: 2009-10 4EN ISO 15403-1:2008 (E) 1 Scope The aim of this part of ISO 15403 is to provide manufacturers, vehicle operators, fuelling station operators and others involved i
29、n the compressed-natural-gas vehicle industry with information on the fuel quality for natural gas vehicles (NGVs) required to develop and operate compressed-natural-gas vehicle equipment successfully. Fuel meeting the requirements of this part of ISO 15403 should a) provide for the safe operation o
30、f the vehicle and associated equipment needed for its fuelling and maintenance; b) protect the fuel system from the detrimental effects of corrosion, poisoning, and liquid or solid deposition; c) provide satisfactory vehicle performance under any and all conditions of climate and driving demands. So
31、me aspects of this part of ISO 15403 may also be applicable for the use of natural gas in stationary combustion engines. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated
32、 references, the latest edition of the referenced document (including any amendments) applies. ISO 6976:1995, Natural gas Calculation of calorific values, density, relative density and Wobbe index from composition 3 Terms and definitions For the purposes of this document, the following terms and def
33、initions apply. Definitions were taken from ISO 14532 whenever possible. 3.1 natural gas complex mixture of hydrocarbons, primarily methane, but generally also including ethane, propane and higher hydrocarbons in much smaller amounts and some non-combustible gases, such as nitrogen and carbon dioxid
34、e NOTE 1 Natural gas generally also includes minor amounts of trace constituents. DIN EN ISO 15403-1: 2009-10 5EN ISO 15403-1:2008 (E) NOTE 2 Natural gas is produced and processed from the raw gas or liquefied natural gas and, if required, blended to the extent suitable for direct use (for example a
35、s gaseous fuel). NOTE 3 Natural gas remains in the gaseous state under the temperature and pressure conditions normally found in service. NOTE 4 Natural gas consists predominantly of methane (mole fraction greater than 0,70), and has a superior calorific value normally within the range 30 MJ/m3to 45
36、 MJ/m3. It contains also ethane (typically up to 0,10 mole fraction), propane, butanes and higher alkanes in steadily decreasing amounts. Nitrogen and carbon dioxide are the principal non-combustible components, each present at levels which typically vary from less than 0,01 mole fraction to 0,20 mo
37、le fraction. Natural gas is processed from the raw gas so as to be suitable for use as industrial, commercial, residential fuel or as a chemical feedstock. The processing is intended to reduce the contents of potentially corrosive components, such as hydrogen sulfide and carbon dioxide, and of other
38、 components, such as water and higher hydrocarbons, potentially condensable in the transmission and distribution of the gas. Hydrogen sulfide, organic sulfur compounds and water are then reduced to trace amounts, and high carbon dioxide contents are likely to be reduced to below 0,05 mole fraction.
39、Natural gas is normally technically free from aerosol, liquid and particulate matter. In some circumstances natural gas may be blended with town gas or coke oven gas, in which case hydrogen and carbon monoxide will be present in amounts up to 0,10 mole fraction and 0,03 mole fraction respectively. I
40、n this case, small amounts of ethylene may also be present. Natural gas may also be blended with LPG1)/air mixtures, in which case oxygen will be present, and the levels of propane and butanes will be considerably enhanced. NOTE 5 Pipeline quality natural gas is one which has been processed so as to
41、 be suitable for direct use as industrial, commercial, residential fuel or as a chemical feed stock. The processing is intended to reduce the corrosive and toxicity effects of certain components, and to avoid condensation of water or hydrocarbons in the transmission and distribution of the gas. Hydr
42、ogen sulfide and water should only be present in trace amounts, and high carbon dioxide content is likely to be reduced. ISO 14532:2001, 2.1.1.1 3.2 substitute natural gas manufactured or blended gas which is interchangeable in its properties with natural gas ISO 14532:2001, 2.1.1.3 NOTE Manufacture
43、d gas is sometimes called synthetic natural gas. 3.3 compressed natural gas natural gas used as a fuel for vehicles, typically compressed up to 20 000 kPa in the gaseous state ISO 14532:2001, 2.1.1.12 NOTE The maximum pressure for natural gas stored in a container is 25 000 kPa. 3.4 gas quality attr
44、ibute of natural gas dependent on its composition and its physical properties ISO 14532:2001, 2.1.1.14 1) LPG = liquefied petroleum gas. DIN EN ISO 15403-1: 2009-10 6EN ISO 15403-1:2008 (E) 3.5 normal reference conditions reference conditions of pressure, temperature and humidity (state of saturatio
45、n) equal to: 101,325 kPa and 273,15 K for a real, dry gas 3.6 standard reference conditions reference conditions of pressure, temperature and humidity (state of saturation) equal to: 101,325 kPa and 288,15 K for a real, dry gas NOTE 1 Good practice requires that the reference conditions are incorpor
46、ated as part of the symbol, and not of the unit, for the physical quantity represented. EXAMPLE ()Scrccrc mrcmrc, ,HpTVp T where SHsuperior calorific value on volumetric basis; Tcrctemperature of the combustion reference conditions; pcrcpressure of the combustion reference conditions; V(pmrc, Tmrc)
47、volume at temperature and pressure of the metering reference conditions. NOTE 2 Standard reference conditions are also referred to as metric standard conditions. NOTE 3 The abbreviation s.t.p. (standard temperature and pressure) replaces the abbreviation N.T.P. (Normal Temperature and Pressure), as
48、formerly used, and is defined as the condition of pressure and temperature equal to: 101,325 kPa and 288,15 K. No restriction is given on the state of saturation. ISO 14532:2001, 2.6.1.4 3.7 superior calorific value energy released as heat by the complete combustion in air of a specified quantity of
49、 gas, in such a way that the pressure p1at which the reaction takes place remains constant, and all the products of combustion are returned to the same specified temperature T1as that of the reactants, all of these products being in the gaseous state except for water formed by combustion, which is condensed to the liquid state at T1 NOTE 1 Where the quantity of gas is specified on a molar basis, the calorific value, expressed in MJ/mol, is designated as: ()S11,H pT On a mass basis the calorific value, expressed in MJ/kg, is designated as
