1、6143:2006)Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHSg49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3
2、g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58-,-,-checking the composition of calibration gas mixturesThe European Standard EN ISO 6143:2006 has the status of a British StandardICS 71.040.40Gas analysis Comparison methods for determining and BRITISH STANDARDBS EN ISO 61
3、43:2006Incorporating amendment no. 1 (renumbers BS ISO 6143:2001 as BS EN ISO BS EN ISO 6143:2006Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHSThis BritiENBSThe PTAsecretary.This Br
4、itish Standard, having been prepared under the direction of the Sector Committee for Materials and Chemicals, was published under the authority of the Standards Committee and comes into effect on 15 August 2001 BSI 2007ISBN 0 580 38068 8contract. Users are responsible for its correct application. Co
5、mpliance with a British Standard cannot confer immunity from -,-,-Amendments issued since publicationAmd. No. Date Comments16904 28 February 2007 Renumbers BS ISO 6143:2001 as BS EN ISO 6143:2006.legal obligations.National forewordsh Standard was published by BSI. It is the UK implementation of ISO
6、6143:2006. It is identical with ISO 6143:2001. It supersedes 4559-9.1:1988 which is withdrawn.UK participation in its preparation was entrusted to Technical Committee I/15, Natural gas and gas analysis.list of organizations represented on PTI/15 can be obtained on request to its This publication doe
7、s not purport to include all the necessary provisions of a EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN ISO 6143August 2006ICS 71.040.40English VersionGas analysis - Comparison methods for determining andchecking the composition of calibration gas mixtures (ISO6143:2001)Analyse des gaz - Mthode
8、s comparatives pour ladtermination et la vrification de la composition desmlanges de gaz pour talonnage (ISO 6143:2001)Gasanalyse - Vergleichsverfahren zur Bestimmung undberprfung der Zusammensetzung vonKalibriergasgemischen (ISO 6143:2001)This European Standard was approved by CEN on 21 July 2006.C
9、EN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on appl
10、ication to the Central Secretariat or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Central Secretariat has th
11、e same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania,S
12、lovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2006 CEN All rights of exploitation in any form and by any means reservedworldwide
13、 for CEN national Members.Ref. No. EN ISO 6143:2006: ECopyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Foreword The text of ISO 6143:2001 has been prepared by Technical Committee
14、ISO/TC 158 “Analysis of gases” of the International Organization for Standardization (ISO) and has been taken over as EN ISO 6143:2006 by Technical Committee CEN/SS N21 “Gaseous fuels and combustible gas“, the secretariat of which is held by CMC. This European Standard shall be given the status of a
15、 national standard, either by publication of an identical text or by endorsement, at the latest by February 2007, and conflicting national standards shall be withdrawn at the latest by February 2007. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the follo
16、wing countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spai
17、n, Sweden, Switzerland and United Kingdom. Endorsement notice The text of ISO 6143:2001 has been approved by CEN as EN ISO 6143:2006 without any modifications. EN ISO 6143:2006Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or netw
18、orking permitted without license from IHS-,-,-Reference numberISO 6143:2001(E)INTERNATIONALSTANDARDISO6143Second edition2001-05-01Gas analysis Comparison methods fordetermining and checking the compositionof calibration gas mixturesAnalyse des gaz Mthodes comparatives pour la dtermination et lavrifi
19、cation de la composition des mlanges de gaz pour talonnageEN ISO 6143:2006Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-ii Copyright European Committee for Standardization Prov
20、ided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- ISO 1002 All rights rsedevre iiiContents PageForeword.ivIntroduction.v1 Scope 12 Terms and definitions .13 Symbols and abbreviated terms 34 Principle45 General procedure.66 Special p
21、rocedures147 Test report 14Annex A (normative) Procedures for data evaluation.16Annex B (informative) Examples .23Annex C (informative) Computer implementation of recommended methods .31Bibliography33EN ISO 6143:2006Copyright European Committee for Standardization Provided by IHS under license with
22、CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-iv ISO 1002 All rights rsedevreForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISOmember bodies). The work of preparing International Standar
23、ds is normally carried out through ISO technicalcommittees. Each member body interested in a subject for which a technical committee has been established hasthe right to be represented on that committee. International organizations, governmental and non-governmental, inliaison with ISO, also take pa
24、rt in the work. ISO collaborates closely with the International ElectrotechnicalCommission (IEC) on all matters of electrotechnical standardization.International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3.Draft International Standards adopted by the te
25、chnical committees are circulated to the member bodies for voting.Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote.Attention is drawn to the possibility that some of the elements of this International Standard may be the subject ofpatent
26、 rights. ISO shall not be held responsible for identifying any or all such patent rights.International Standard ISO 6143 was prepared by Technical Committee ISO/TC 158, Analysis of gases,tocanceland replace the first edition (ISO 6143:1981), of which the methods for the design and evaluation of cali
27、brations ofanalytical systems have been updated and a method for estimating the uncertainty of the composition of calibrationgas mixtures has been added. It also cancels and replaces ISO 6711:1981, of which entirely new methods forchecking the composition of calibration gases have been specified, th
28、us replacing the method which is no longer inuse.Annex A forms a normative part of ISO 6143. Annexes B and C are for information only.EN ISO 6143:2006Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without l
29、icense from IHS-,-,- ISO 1002 All rights rsedevre vIntroductionIn gas analysis, calibration of analytical systems, as specified in the first edition of ISO 6143, has largely beenconfined to the determination of a straight line through the origin, or of a straight-line segment, using only theminimum
30、number of calibration standards (one for a straight line through the origin, two for a line segment). Theapproach adopted in the revision, relating to calibration as well as to uncertainty evaluation, goes far beyond thissimple scheme byGbe including non-linear response curves and/or functions,Gbe r
31、eplacing interpolation by regression,Gbe taking into account the uncertainty on the calibration standards,Gbe including validation of calculated response curves and/or functions,Gbe calculating uncertainties by uncertainty propagation.As a consequence of adopting non-linear response models, advanced
32、 regression techniques (errors in bothvariables) and uncertainty propagation, the main calculation procedures can only be performed on a computer,using a specific program. Such a program is available (see annex C). As an alternative, sufficient information isgiven in the document to enable the user
33、to develop a program on his own.EN ISO 6143:2006Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-blankCopyright European Committee for Standardization Provided by IHS under licens
34、e with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- ISO 1002 All rights rsedevre 1Gas analysis Comparison methods for determining andchecking the composition of calibration gas mixtures1 ScopeThis International Standard provides methods forGbe determining th
35、e composition of a calibration gas mixture by comparison with appropriate reference gasmixtures,Gbe calculating the uncertainty of the composition of a calibration gas mixture in relation to the known uncertainty ofthe composition of the reference gas mixtures with which it was compared,Gbe checking
36、 the composition attributed to a calibration gas mixture by comparison with appropriate reference gasmixtures,Gbe comparing the composition of several calibration gas mixtures, e.g. for the purpose of comparing differentmethods of gas mixture preparation, or for testing consistency among gas mixture
37、s of closely relatedcomposition.NOTE In principle, the method described in this document is also applicable to the analysis of (largely) unknown samplesinstead of prospective calibration gas mixtures (i.e. gas mixtures which are intended for use as calibration gas mixtures). Suchapplications, howeve
38、r, require appropriate care and consideration of additional uncertainty components, for example concerningthe effect of matrix differences between the reference gases used for calibration and the analysed sample.2 Terms and definitionsFor the purposes of this International Standard, the following te
39、rms and definitions apply.2.1compositioncharacteristic of a gas mixture given by the kind and content of each specified mixture component (analyte) and thecomposition of the complementary gas (matrix)NOTE In this International Standard, the analyte content is specified as a mole fraction, exclusivel
40、y. Mole fractions havethe advantage of being perfectly independent of the pressure and the temperature of the gas mixture. Therefore their use isrecommended. However, for specific measuring systems, other composition measures (e.g. mass concentrations) may be moreappropriate. Their use then requires
41、 due care concerning the dependence on pressure and temperature.2.2comparison methodmethod for determining the content of a specified gas mixture component (analyte) by measuring an instrumentalresponseNOTE Comparison of measuring systems requires calibration, in which the relationship between respo
42、nse and analytecontent is established. This is achieved by measuring the response to known values of analyte content provided by referencegas mixtures.EN ISO 6143:2006Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking pe
43、rmitted without license from IHS-,-,-2 ISO 1002 All rights rsedevre2.3calibrationset of operations that establish, under specified conditions, the relationship between values of quantities indicatedby a measuring instrument or measuring system, or values represented by a material measure or referenc
44、ematerial, and the corresponding values realized by standardsVIM2.4response functionfunctional relationship between instrumental response and analyte contentNOTE 1 The response function can be expressed in two different ways as a calibration function or an analysis function,depending on the choice o
45、f the dependent and the independent variable.NOTE 2 The response function is conceptual and cannot be determined exactly. It is determined approximately throughcalibration.2.4.1calibration functioninstrumental response expressed as a function of analyte content2.4.2analysis functionanalyte content e
46、xpressed as a function of instrumental response2.5uncertainty of measurementparameter, associated with the result of a measurement, that characterizes the dispersion of the values that canreasonably be attributed to the measurandGUMNOTE In keeping with the GUM, in this International Standard the unc
47、ertainty of the composition of a gas mixture isexpressed as a standard uncertainty, i.e. as a single standard deviation.2.6traceabilityproperty of the result of a measurement or the value attributed to a standard whereby it can be related to statedreferences, usually national or international standa
48、rds, through an unbroken chain of comparisons all having stateduncertaintiesVIM2.7measurement standardmaterial measure, measuring instrument, reference material, or measuring system, intended to define, realize,conserve, or reproduce a unit or one or more values of a quantity to serve as a referenceVIM2.8reference standardstandard, generally having the highest metrological quality available at a given location or in a given organization,from which measurements made there are derivedVIMEN ISO 6143:2006Copyright European
