1、BRITISH STANDARD BS EN ISO 8655-6:2002 Piston-operated volumetric apparatus Part 6: Gravimetric methods for the determination of measurement error ICS 17.060 Incorporating Corrigendum December 2008 BS EN ISO 8655-6:2002National foreword This British Standard is the UK implementation of EN ISO 8655-6
2、:2002. It is identical with ISO 8655-6:2002, incorporating corrigendum December 2008. It supersedes BS 7653-3:1993 and BS 7653-4:1993 which are withdrawn. In addition to this it also, together with Parts 1 and 2 of BS EN ISO 8655:2002, supersedes BS 6018:1991 and BS 7532:1991 which are withdrawn. Th
3、e start and finish of text introduced or altered by corrigendum is indicated in the text by tags. Text altered by ISO corrigendum December 2008 is indicated in the text by . The UK participation in its preparation was entrusted by Technical Committee LBI/36, Laboratory glassware and related apparatu
4、s, to Subcommittee LBI/36/1, General and volumetric, glass and plastics apparatus. A list of organizations represented on this subcommittee can be obtained on request to its secretary. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for
5、its correct application. Compliance with a British Standard cannot confer immunity from legal obligations. BS EN ISO 8655-6:2002 Amendments/corrigenda issued since publication Date Comments 30 June 2009 Implementation of ISO corrigendum December 2008 This British Standard, having been prepared under
6、 the direction of the Materials and Chemicals Sector Policy and Strategy Committee, was published under the authority of the Standards Policy and Strategy Committee on 22 October 2002 BSI 2009 ISBN 978 0 580 66193 8EUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM ENISO86556 September2002 ICS17.060 Eng
7、lishversion PistonoperatedvolumetricapparatusPart6:Gravimetric methodsforthedeterminationofmeasurementerror(ISO8655 6:2002) AppareilsvolumtriquespistonPartie6:Mthodes gravimtriquespourladterminationdelerreurdemesure (ISO86556:2002) VolumenmessgertemitHubkolbenTeil6: GravimetrischePrfverfahrenzurBest
8、immungder Messabweichung(ISO86556:2002) ThisEuropeanStandardwasapprovedbyCENon13July2002. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEuropean Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferences
9、concerningsuchnational standardsmaybeobtainedonapplicationtotheManagementCentreortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytranslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheManagementCentreha
10、sthesamestatusastheofficial versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece, Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal,Spain,Sweden,SwitzerlandandUnitedKingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEU
11、ROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2002CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.ENISO86556:2002E BS EN ISO 8655-6:2002Foreword Thisdocument(ISO86556:2002)hasbeenpreparedbyTechnicalCom
12、mitteeISO/TC48 “Laboratoryglasswareandrelatedapparatus“incollaborationwithTechnicalCommittee CEN/TC332“Laboratoryequipment“,thesecretariatofwhichisheldbyDIN. ThisEuropeanStandardshallbegiventhestatusofanationalstandard,eitherbypublication ofanidenticaltextorbyendorsement,atthelatestbyMarch2003,andco
13、nflictingnational standardsshallbewithdrawnatthelatestbyMarch2003. AccordingtotheCEN/CENELECInternalRegulations,thenationalstandardsorganizationsof thefollowingcountriesareboundtoimplementthisEuropeanStandard:Austria,Belgium, CzechRepublic,Denmark,Finland,France,Germany,Greece,Iceland,Ireland,Italy,
14、 Luxembourg,Malta,Netherlands,Norway,Portugal,Spain,Sweden,Switzerlandandthe UnitedKingdom. Endorsementnotice ThetextoftheInternationalStandardISO86556:2002hasbeenapprovedbyCENasa EuropeanStandardwithoutanymodifications. NOTENormativereferencestoInternationalStandardsarelistedinAnnexZA(normative). E
15、NISO86556:2002 BS EN ISO 8655-6:2002INTERNATIONAL STANDARD ISO 86556 Firstedition 20020915 Referencenumber ISO 86556:2002(E) Pistonoperatedvolumetricapparatus Part 6: Gravimetricmethodsforthedetermination ofmeasurementerror Appareilsvolumtriquespiston Partie 6:Mthodesgravimtriquespourladterminationd
16、elerreurde mesure ENISO86556:2002 BS EN ISO 8655-6:2002ISO 55682:6)E(200 ii ISO 2002 Arllithgrseresvde FDPdicslaimre ThisFDPfamelitnocytdeddebmeniayfep.secaInroccatiwecnadAhycilopgnisnecilsebod,thfsimeliarpebytnieivrodewbde tusllahtoneb tidesselnudettehyfepsecahwichraemeileradeddebctdesneotsnidnalat
17、nodelmocehtupreepfrromigntideehti.gnInodaolnwtgnidhisfile, rapticcasetpetrehietnehserilibisnoptyfotonfnirisebodAgnignilopgnisnecilcy.TIehSOtneCraceSlrteraiatcatpeconsillibaityinthisaera. ebodAsitarmedarakfodASebotsysmeInroctarop.de teDailfostfosehtwareprtcudostdesuocrtaetehFDPsiffebnacelitnidnuoGehl
18、areneInfotalerivetotfeh;elitehPDFrc taerapnoimateers weertpofdezimiorrptnii.gnvErecyaeebsahertnaktneorusnetetahtfehielistiusbafelobesuryISOmerebmseidob.Inthe kilnuleyevtne ttahaborpmeltalerigntotifsi,dnuosaelpfnieormtehtneCSlaretercrataitathserddaesigvneolebw. ISO 2002 ArlliesersthgrvsselnU.detorehc
19、epsesiwfi,deirapontihtfosbupliactimnoarperebyrodecudotuzilinanideyformbroyna snaemy, tcelernahcemrocinoicla,inclidungtohppocoyingmdnaicrfomli,tiwtuohpermininoisswrtifgnirmoietIrehSOtatserddaehebs loworSIsO memrebydobintocehtnuryfotrehtseuqeer. ISOcopyrithgfofiec tsopesaCael65G1121HCeneva02 Te.l +221
20、41094711 Fax +14472290974 Eliam copyrightsio.ch Web wwwsi.oc.h PrnidetniSztiwerldna ii ENISO86556:2002 BS EN ISO 8655-6:2002OSI 55682002:6)E( ISO 2002 rllAithgsreservde iii Contents Page 1 Scope. 1 2 Normativereferences . 1 3 Termsanddefinitions 1 4 Apparatus. 2 5 Testliquid 2 6 Testconditions 2 7 P
21、rocedure. 3 8 Evaluation. 8 9 Testreport 10 Annexes A Calculationofvolumesfrombalancereadings . 12 B Assessmentoftheuncertaintyofthedeliveredvolume 13 Bibliography. 14 iii ENISO86556:2002 BS EN ISO 8655-6:2002ISO 55682:6)E(200 vi ISO 2002 Arllithgrseresvde Foreword ISO(theInternationalOrganizationfo
22、rStandardization)isaworldwidefederationofnationalstandardsbodies(ISO memberbodies).TheworkofpreparingInternationalStandardsisnormallycarriedoutthroughISOtechnical committees.Eachmemberbodyinterestedinasubjectforwhichatechnicalcommitteehasbeenestablishedhas therighttoberepresentedonthatcommittee.Inte
23、rnationalorganizations,governmentalandnongovernmental,in liaisonwithISO,alsotakepartinthework.ISOcollaboratescloselywiththeInternationalElectrotechnical Commission(IEC)onallmattersofelectrotechnicalstandardization. InternationalStandardsaredraftedinaccordancewiththerulesgivenintheISO/IECDirectives,P
24、art 3. DraftInternationalStandardsadoptedbythetechnicalcommitteesarecirculatedtothememberbodiesforvoting. PublicationasanInternationalStandardrequiresapprovalbyatleast75 %ofthememberbodiescastingavote. AttentionisdrawntothepossibilitythatsomeoftheelementsofthispartofISO 8655maybethesubjectofpatent r
25、ights.ISOshallnotbeheldresponsibleforidentifyinganyorallsuchpatentrights. InternationalStandardISO 86556waspreparedbyTechnicalCommitteeISO/TC 48, Laboratoryglasswareand relatedapparatus,SubcommitteeSC 1,Volumetricinstruments. ISO 8655consistsofthefollowingparts,underthegeneraltitlePistonoperatedvolu
26、metricapparatus : Part 1: Terminology,generalrequirementsanduserrecommendations Part 2: Pistonpipettes Part 3: Pistonburettes Part 4: Dilutors Part 5: Dispensers Part 6: Gravimetricmethodsforthedeterminationofmeasurementerror AnnexAformsanormativepartofthispartofISO 8655.AnnexBisforinformationonly.
27、iv ENISO86556:2002 Part 7: Non-gravimetric methods for the assessment of equipment performance BS EN ISO 8655-6:2002OSI 55682002:6)E( ISO 2002 rllAithgsreservde v Introduction ISO 8655addressestheneedsof: suppliers,asabasisforqualitycontrolincluding,whereappropriate,theissuanceofsuppliersdeclaration
28、s; testhousesandotherbodies,asabasisforindependentcertification; usersoftheequipment,toenableroutinecheckingofaccuracy. Thetestsspecifiedshouldbecarriedoutbytrainedpersonnel. v ENISO86556:2002 BS EN ISO 8655-6:2002 blank BS EN ISO 8655-6:2002ANRETNIITOTSLANDNADRA OSI 55682002:6)E( ISO 2002 rllAithgs
29、reservde 1 Pistonoperatedvolumetricapparatus Part 6: Gravimetricmethodsforthedeterminationofmeasurementerror 1 Scope ThispartofISO 8655specifiesthereferencemethodforconformitytestingofpistonoperatedvolumetricapparatus, wherebyerrorsofmeasurementaredeterminedgravimetrically.Thetestsareapplicabletocom
30、pletesystems comprisingthebasicapparatusandallpartsselectedforusewiththeapparatus,disposableorreusable,involvedin themeasurementbyuptake(In)ordelivery(Ex)process. NOTE GeneralrequirementsanddefinitionsoftermsofpistonoperatedvolumetricapparatusaregiveninISO 86551.Forthe metrologicalrequirements,maxim
31、umpermissibleerrors,requirementsformarkingandinformationtobeprovidedforusersfor 2 Normativereferences Thefollowingnormativedocumentscontainprovisionswhich,throughreferenceinthistext,constituteprovisionsof thispartofISO 8655.Fordatedreferences,subsequentamendmentsto,orrevisionsof,anyofthesepublicatio
32、nsdo notapply.However,partiestoagreementsbasedonthispartofISO 8655areencouragedtoinvestigatethe possibilityofapplyingthemostrecenteditionsofthenormativedocumentsindicatedbelow.Forundatedreferences, thelatesteditionofthenormativedocumentreferredtoapplies.MembersofISOandIECmaintainregistersof currentl
33、yvalidInternationalStandards. ISO 3696,Waterforanalyticallaboratoryuse Specificationandtestmethods ISO 86551:2002, Pistonoperatedvolumetricapparatus Part 1:Terminology,generalrequirementsanduser recommendations ISO 86552:2002,Pistonoperatedvolumetricapparatus Part 2:Pistonpipettes ISO 86553:2002,Pis
34、tonoperatedvolumetricapparatus Part 3:Pistonburettes ISO 86554:2002,Pistonoperatedvolumetricapparatus Part 4:Dilutors ISO 86555:2002,Pistonoperatedvolumetricapparatus Part 5:Dispensers ISO/TR 20461:2000,Determinationofuncertaintyforvolumemeasurementsmadeusingthegravimetricmethod ISO/IEC Guide 2,Stan
35、dardizationandrelatedactivities Generalvocabulary 3 Termsanddefinitions ForthepurposesofthispartofISO 8655,thetermsanddefinitionsgiveninISO 86551,ISO/IEC Guide 2and OIML R 761apply. 1 ENISO86556:2002 pistonoperatedvolumetricapparatus,seeISO 86552forpistonpipettes,seeISO 86553forpistonburettes,seeISO
36、 86554for dilutorsandseeISO 86555fordispensers. Alternativetestmethodssuchasphotometricandtitrimetricmethodsare giveninISO86557. OIML R 761,Nonautomaticweighinginstruments Part 1:Metrologicalandtechnicalrequirements Tests BS EN ISO 8655-6:2002ISO 55682:6)E(200 2 ISO 2002 Arllithgrseresvde 4 Apparatu
37、s 4.1 Analyticalbalanceorequivalentweighingdevice ,witharesolutionappropriatetotheselectedvolumeof theapparatusundertest(seeTable 1). Ifthestandarduncertaintyofmeasurementofthebalanceisknown(e.g.fromthebalancecalibrationcertificate),this maybeusedinsteadoftherepeatabilityandlinearity.Thestandardunce
38、rtaintyofmeasurementshallnotbemore thantwotothreetimestheresolution. 4.2 Liquidreservoir,withsufficientcapacityforallthetestliquidlikelytoberequiredforthecompleteseriesof tests. 4.3 Weighingvessel ,suitableforthetestprocedureselectedfromclause 7.Careshallbetakenregardingtheloss ofwaterbyevaporationd
39、uringthedispensingandweighingprocedure. Itisrecommendedthat,especiallyfortestingapparatusofthelowestvolume,theheighttodiameterratioofthe weighingvesselbeatleast3:1orthataweighingvesselwithalidbeused. 4.4 Timingdevice ,withastandarduncertaintyof (seenoteto4.7). 4.5 Thermometer,withastandarduncertaint
40、yof (seenoteto4.7). 4.6 Hygrometer,withastandarduncertaintyof (seenoteto4.7). 4.7 Barometer,withastandarduncertaintyof (seenoteto4.7). NOTE Alluncertaintiesarespecifiedusingacoveragefactor of1. 5 Testliquid Usedistilledordeionizedwaterconforminggrade 3asspecifiedinISO 3696,degassedorairequilibrated.
41、The watershallbeatroomtemperature(see 6.2). 6 Testconditions 6.1 General Apparatusthatisroutinelydismantledandreassembledwithinthescopeofitsintendeduse(e.g.forcleaning purposes)shallbedismantledandreassembledatleastoncepriortothetestinaccordancewiththesuppliers operationmanual. Apparatusshallbeopera
42、tedasspecifiedinthesuppliersoperationmanual. Table 1 Minimumrequirementsforbalances Selectedvolume a ofapparatusunder test Resolution Repeatabilityand linearity Standarduncertaintyof measurement 0,001 0,002 0,002 0,01 0,02 0,02 0,1 0,2 0,2 0,1 0,2 0,2 122 a Forpracticalpurposes,thenominalvolumemaybe
43、usedtochoosethebalance. V mg mg mg 1 l V 10 l 10 lV 100 l 100 lV 1 000 l 1mlV 10 ml 10 mlV 200 ml 1s 0,2 C 10 % 0,5 kPa k 2 ENISO86556:2002 BS EN ISO 8655-6:2002OSI 55682002:6)E( ISO 2002 rllAithgsreservde 3 6.2 Testroom Thetestshallbecarriedoutinadraughtfreeroomwithastableenvironment.Thetestroomshallhavearelative humidityabove andaconstant( )temperaturebetween and .Priortothetest,the apparatustobetestedandthetestwatershallhavestoodintheroomforasufficienttime,atleast ,toreach equilibriumwiththeroomconditions. NOTE See8.3for
