SIST EN 61207-3:2002
(Main)Gas analyzers - Expression of performance -- Part 3: Paramagnetic oxygen analyzers
Gas analyzers - Expression of performance -- Part 3: Paramagnetic oxygen analyzers
Applies to the following main measuring methods: automatic null balance, thermomagnetic or mangetic wind and differential pressure or Quinke. Deals with ancillary units and applies to analyzers installed both indoors and outdoors. Indends to specify terminology and definitions, unify methods, specify tests and provide basic documents to support the application of standards of quality assurance ISO 9001, ISO 9002 and ISO 9003.
Gasanalysegeräte - Angabe zum Betriebsverhalten -- Teil 3: Paramagnetische Sauerstoffanalysegeräte
Analyseurs de gaz - Expression des qualités de fonctionnement -- Partie 3: Analyseurs d'oxygène paramagnétiques
S'applique à trois méthodes principales de mesure: équilibrage automatique à méthode de zéro "vent" thermomagnétique ou magnétique et pression différentielle ou méthode de "Quinke". Traite des unités auxiliaires et s'applique aux analyseurs installés à l'intérieur et à l'extérieur. A pour objet de spécifier la terminologie et les définitions, unifier les méthodes, spécifier les essais et de stipuler des documents de base permettant d'appliquer les normes d'assurance de la qualité ISO 9001, ISO 9002 et ISO 9003.
Gas analyzers - Expression of performance - Part 3: Paramagnetic oxygen analyzers
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Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Gas analyzers - Expression of performance - Part 3: Paramagnetic oxygen analyzersGasanalysegeräte - Angabe zum Betriebsverhalten -- Teil 3: Paramagnetische SauerstoffanalysegeräteAnalyseurs de gaz - Expression des qualités de fonctionnement -- Partie 3: Analyseurs d'oxygène paramagnétiquesGas analyzers - Expression of performance -- Part 3: Paramagnetic oxygen analyzers71.040.40Kemijska analizaChemical analysisICS:Ta slovenski standard je istoveten z:EN 61207-3:2002SIST EN 61207-3:2002en01-september-2002SIST EN 61207-3:2002SLOVENSKI
STANDARDSIST EN 61207-3:20011DGRPHãþD
SIST EN 61207-3:2002
EUROPEAN STANDARDEN 61207-3NORME EUROPÉENNEEUROPÄISCHE NORMMay 2002CENELECEuropean Committee for Electrotechnical StandardizationComité Européen de Normalisation ElectrotechniqueEuropäisches Komitee für Elektrotechnische NormungCentral Secretariat: rue de Stassart 35, B - 1050 Brussels© 2002 CENELEC -All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.Ref. No. EN 61207-3:2002 EICS 71.040.40; 19.040Supersedes EN 61207-3:1999English versionGas analyzers -Expression of performancePart 3: Paramagnetic oxygen analyzers(IEC 61207-3:2002)Analyseurs de gaz -Expression des qualitésde fonctionnementPartie 3: Analyseurs d'oxygèneparamagnétiques(CEI 61207-3:2002)Gasanalysegeräte -Angabe zum BetriebsverhaltenTeil 3: ParamagnetischeSauerstoffanalysegeräte(IEC 61207-3:2002)This European Standard was approved by CENELEC on 2002-05-01. CENELEC members are bound tocomply 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 national standards may be obtained onapplication to the Central Secretariat or to any CENELEC member.This European Standard exists in three official versions (English, French, German). A version in any otherlanguage made by translation under the responsibility of a CENELEC member into its own language andnotified to the Central Secretariat has the same status as the official versions.CENELEC members are the national electrotechnical committees of Austria, Belgium, Czech Republic,Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands,Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.SIST EN 61207-3:2002
EN 61207-3:2002- 2 -ForewordThe text of document 65D/79/FDIS, future edition 2 of IEC 61207-3, prepared by SC 65D, Analyzingequipment, of IEC TC 65, Industrial-process measurement and control, was submitted to theIEC-CENELEC parallel vote and was approved by CENELEC as EN 61207-3 on 2002-05-01.This European Standard supersedes EN 61207-3:1999.The following dates were fixed:–latest date by which the EN has to be implementedat national level by publication of an identicalnational standard or by endorsement(dop)2003-02-01–latest date by which the national standards conflictingwith the EN have to be withdrawn(dow)2005-05-01This European Standard shall be used in conjunction with EN 61207-1.Annexes designated "normative" are part of the body of the standard.Annexes designated "informative" are given for information only.In this standard, annex ZA is normative and annexes A and B are informative.Annex ZA has been added by CENELEC.__________Endorsement noticeThe text of the International Standard IEC 61207-3:2002 was approved by CENELEC as a EuropeanStandard without any modification.__________SIST EN 61207-3:2002
- 3 -EN 61207-3:2002Annex ZA(normative)Normative references to international publicationswith their corresponding European publicationsThis European Standard incorporates by dated or undated reference, provisions from otherpublications. These normative references are cited at the appropriate places in the text and thepublications are listed hereafter. For dated references, subsequent amendments to or revisions of anyof these publications apply to this European Standard only when incorporated in it by amendment orrevision. For undated references the latest edition of the publication referred to applies (includingamendments).NOTEWhen an international publication has been modified by common modifications, indicated by (mod), the relevantEN/HD applies.PublicationYearTitleEN/HDYearIEC 60654-11993Industrial-process measurement andcontrol equipment - OperatingconditionsPart 1: Climatic conditionsEN 60654-11993IEC 611151992Expression of performance of samplehandling systems for process analyzersEN 611151993IEC 61207-11994Expression of performance of gasanalyzersPart 1: GeneralEN 61207-11994ISO 90012000Quality management systemsRequirementsEN ISO 90012000ISO 90021994Quality systems - Model for qualityassurance in production, installation andservicingEN ISO 90021994ISO 90031994Quality systems - Model for qualityassurance in final inspection and testEN ISO 90031994SIST EN 61207-3:2002
SIST EN 61207-3:2002
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61207-3 © IEC:2002– 7 –IEC 61207-3 constitutes part 3 of a series of publications under the general title Gasanalyzers – Expression of performance:–Part 1: General–Part 2: Oxygen in gas (utilizing high-temperature electrochemical sensors)–Part 3: Paramagnetic oxygen analyzers–Part 6: Photometric analyzers–Part 7: Infra-red analyzersParts 4 and 5 are under consideration.The committee has decided that the contents of this publication will remain unchangeduntil 2006. At this date, the publication will be•reconfirmed;•withdrawn;•replaced by a revised edition, or•amended.The contents of the corrigendum of January 2003 and 2ay 2003 have been included in thiscopy.SIST EN 61207-3:2002
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61207-3 © IEC:2002– 15 –It is the combination of the spin moment and the orbital moment that governs the resulting magnetic properties ofan individual atom or ion.In paramagnetic materials, the main contribution to the magnetic moment comes from unpaired electrons. It is theconfiguration of the orbital electrons and their spin orientations that establish the paramagnetism of the oxygenmolecule and distinguish it from most other gases.NOTE 2
When paramagnetic gases are placed within an external magnetic field, the flux within the gas is higherthan it would be in a vacuum, thus paramagnetic gases are attracted to the part of the magnetic field with thestrongest magnetic flux. On the contrary, diamagnetic substances contain magnetic dipoles which cancel out somelines of force from the external field; thus diamagnetic gases are subject to repulsion by the magnetic flux.NOTE 3 The molar magnetic susceptibility of oxygen is inversely proportional to the absolute temperature Taccording toXm = (1010557/ T)× 10–6cm3mol–1.(only for oxygen).NOTE 4
A full understanding of paramagnetism and diamagnetism can be obtained from physics and inorganicchemistry textbooks. The explanation in this standard is to give the user of paramagnetic oxygen analyzers asimple understanding of the physical property utilized.3.2automatic null balance analyzerthis type of analyzer uses, as a general principle of operation, the displacement of a bodycontaining a vacuum or a diamagnetic gas, from a region of high magnetic field by para-magnetic oxygen molecules (see figure 1).The measuring cell typically employs a glass dumb-bell, with the spheres containing nitrogen,suspended on a torsion strip between magnetic pole pieces that concentrate the flux aroundthe dumb-bell. The measuring cell has to be placed in a magnetic circuit. The dumb-bell isthen deflected when oxygen molecules enter the measuring cell, a force being exerted on thedumb-bell by the oxygen molecules which are attracted to the strongest part of the magneticfield. By use of optical levers, a feed-back coil, and suitable electronics, an output that isdirectly proportional to the partial pressure of oxygen can be achieved. The transducer isusually maintained at a constant temperature to prevent the variations in magneticsusceptibility with temperature from introducing errors. Additionally, the elevated temperaturehelps in applications where the sample is not particularly dry. Some analyzers are designedso that the transducer operates at a temperature in excess of 373,15 K (100 °C) to furtherfacilitate applications where condensates would form at lower temperature.SIST EN 61207-3:2002
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