1、BRITISH STANDARD BS EN ISO 8655-5:2002 Piston-operated volumetric apparatus Part 5: Dispensers ICS 17.060 Incorporating CorrigendumDecember 2008National foreword This British Standard is the UK implementation of EN ISO 8655-5:2002. It is identical with ISO 8655-5:2002, incorporating corrigendum Dece
2、mber 2008. It, together with Parts 2, 3 and 4 of BS EN ISO 8655:2002, supersedes BS 7653-2:1993 which is withdrawn. The 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 p
3、articipation in its preparation was entrusted by Technical Committee LBI/36, Laboratory glassware and related apparatus, 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 secretar
4、y. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard cannot confer immunity from legal obligations. BS EN ISO 8655-5:2002 This British Standard, having been prepared under the
5、 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 66192 1 Amendments/corrigenda issued since publication Date Comments 30 June 2009 Implementation
6、 of ISO corrigendum December 2008EUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM ENISO86555 September2002 ICS17.060 Englishversion PistonoperatedvolumetricapparatusPart5:Dispensers(ISO 86555:2002) AppareilsvolumtriquespistonPartie5:Dispenseurs (ISO86555:2002) VolumenmessgertemitHubkolbenTeil5:Dispens
7、er (ISO86555:2002) ThisEuropeanStandardwasapprovedbyCENon13July2002. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEuropean Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcerningsuchnationa
8、l standardsmaybeobtainedonapplicationtotheManagementCentreortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytranslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheManagementCentrehasthesamestatusastheof
9、ficial versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece, Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal,Spain,Sweden,SwitzerlandandUnitedKingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION
10、EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2002CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.ENISO86555:2002EForeword Thisdocument(ISO86555:2002)hasbeenpreparedbyTechnicalCommitteeISO/TC48 “Laboratoryglasswareandrelat
11、edapparatus“incollaborationwithTechnicalCommittee CEN/TC332“Laboratoryequipment“,thesecretariatofwhichisheldbyDIN. ThisEuropeanStandardshallbegiventhestatusofanationalstandard,eitherbypublication ofanidenticaltextorbyendorsement,atthelatestbyMarch2003,andconflictingnational standardsshallbewithdrawn
12、atthelatestbyMarch2003. AccordingtotheCEN/CENELECInternalRegulations,thenationalstandardsorganizationsof thefollowingcountriesareboundtoimplementthisEuropeanStandard:Austria,Belgium, CzechRepublic,Denmark,Finland,France,Germany,Greece,Iceland,Ireland,Italy, Luxembourg,Malta,Netherlands,Norway,Portug
13、al,Spain,Sweden,Switzerlandandthe UnitedKingdom. Endorsementnotice ThetextoftheInternationalStandardISO86555:2002hasbeenapprovedbyCENasa EuropeanStandardwithoutanymodifications. NOTENormativereferencestoInternationalStandardsarelistedinAnnexZA(normative). ENISO86555:2002 BS EN ISO 8655-5:2002INTERNA
14、TIONAL STANDARD ISO 86555 Firstedition 20020915 Referencenumber ISO 86555:2002(E) Pistonoperatedvolumetricapparatus Part 5: Dispensers Appareilsvolumtriquespiston Partie 5:Dispenseurs ENISO86555:2002 BS EN ISO 8655-5:2002ii FDPdicslaimre ThisFDPfamelitnocytdeddebmeniayfep.secaInroccatiwecnadAhycilop
15、gnisnecilsebod,thfsimeliarpebytnieivrodewbde tusllahtoneb tidesselnudettehyfepsecahwichraemeileradeddebctdesnetsnidnaolatnodelmocehtupreepfrromigntideehti.gnInodaolnwtgnidihsfile, rapticcasetpetrehietnehserilibisnoptyfotonfnirisebodAgnignilopgnisnecilcy.TIehSOtneCrceSlarteraitacatpeconsillibaityitni
16、hsaera. ebodAsitarmedarakfodASebotsysmeInroctarop.de teDailfostfosehtwareprtcudostdesuocrtaetehFDPsiffebnacelitnidnuoGehlareneInfotalerivetotfeh;elitehPDFrc taerapnoimateers weertpofdezimiorrptnii.gnvErecyaeebsahertnaktneorusnetetahtfehielistiusbafelobesuryISOmerebmseidob.Inthe kilnuleyevtne ttahabo
17、rpmeltalerigntotifsi,dnuosaelpfnieromtehtneCSlartercerataitathserddaesigvneolebw. ISO 2002 ArlliesersthgrvsselnU.detorehcepsesiwfi,deirapontihtfosbupliactimnoarperebyrodecudotuzilinanideyfrombroyna snaemy, tcelernahcemrocinoicla,inclidungtohppocoyingmdnaicrfomli,tiwtuohpermininoisswrtifgnirmoietIreh
18、SOtatserddaehebs loworSIsO memrebydobintocehtnuryfotrehtseuqeer. ISOcopyrithgfofiec tsopesaCela65G1121HCeneva02 T.le +22141094711 Fxa +14472290974 Eliam cpoyrigthsio.ch Web wwwsi.oc.h ENISO86555:2002 BS EN ISO 8655-5:2002 iii Contents Page 1 Scope. 1 2 Normativereferences . 1 3 Termsanddefinitions 1
19、 4 Principleofoperation 1 5 Adjustment 2 6 Metrologicalperformancerequirements . 2 7 Userinformation . 4 8 Marking. 4 Bibliography. 5 ENISO86555:2002 BS EN ISO 8655-5:2002iv Foreword ISO(theInternationalOrganizationforStandardization)isaworldwidefederationofnationalstandardsbodies(ISO memberbodies).
20、TheworkofpreparingInternationalStandardsisnormallycarriedoutthroughISOtechnical committees.Eachmemberbodyinterestedinasubjectforwhichatechnicalcommitteehasbeenestablishedhas therighttoberepresentedonthatcommittee.Internationalorganizations,governmentalandnongovernmental,in liaisonwithISO,alsotakepar
21、tinthework.ISOcollaboratescloselywiththeInternationalElectrotechnical Commission(IEC)onallmattersofelectrotechnicalstandardization. InternationalStandardsaredraftedinaccordancewiththerulesgivenintheISO/IECDirectives,Part 3. DraftInternationalStandardsadoptedbythetechnicalcommitteesarecirculatedtothe
22、memberbodiesforvoting. PublicationasanInternationalStandardrequiresapprovalbyatleast75 %ofthememberbodiescastingavote. AttentionisdrawntothepossibilitythatsomeoftheelementsofthispartofISO 8655maybethesubjectofpatent rights.ISOshallnotbeheldresponsibleforidentifyinganyorallsuchpatentrights. Internati
23、onalStandardISO 86555waspreparedbyTechnicalCommitteeISO/TC 48, Laboratoryglasswareand relatedapparatus,SubcommitteeSC 1,Volumetricinstruments. ISO 8655consistsofthefollowingparts,underthegeneraltitlePistonoperatedvolumetricapparatus : Part 1: Terminology,generalrequirementsanduserrecommendations Par
24、t 2: Pistonpipettes Part 3: Pistonburettes Part 4: Dilutors Part 5: Dispensers Part 6: Gravimetricmethodsforthedeterminationofmeasurementerror ENISO86555:2002 Part 7: Non-gravimetric methods for the assessment of equipment performance BS EN ISO 8655-5:2002 v Introduction ISO 8655addressestheneedsof:
25、 suppliers,asabasisforqualitycontrolincluding,whereappropriate,theissuanceofsuppliersdeclarations; testhousesandotherbodies,asabasisforindependentcertification; usersoftheequipment,toenableroutinecheckingofaccuracy. Thetestsspecifiedshouldbecarriedoutbytrainedpersonnel. ENISO86555:2002 BS EN ISO 865
26、5-5:2002 blank BS EN ISO 8655-5:2002ANRETNIITOTSLANDNADRA OSI 55682002:5)E( 1 Pistonoperatedvolumetricapparatus Part 5: Dispensers 1 Scope ThispartofISO 8655specifies metrologicalrequirements, maximumpermissibleerrors, requirementsformarkingand informationtobeprovidedforusers fordispensers.Itisappli
27、cabletodispenserswithnominalvolumesfrom upto ,designedtodelivertheir volume(Ex). 2 Normativereferences Thefollowingnormativedocumentscontainprovisionswhich,throughreferenceinthistext,constituteprovisionsof thispartofISO 8655.Fordatedreferences,subsequentamendmentsto,orrevisionsof,anyofthesepublicati
28、onsdo notapply.However,partiestoagreementsbasedonthispartofISO 8655areencouragedtoinvestigatethe possibilityofapplyingthemostrecenteditionsofthenormativedocumentsindicatedbelow.Forundatedreferences, thelatesteditionofthenormativedocumentreferredtoapplies.MembersofISOandIECmaintainregistersof current
29、lyvalidInternationalStandards. ISO 3696,Waterforanalyticallaboratoryuse Specificationandtestmethods ISO 86551:2002, Pistonoperatedvolumetricapparatus Part 1:Terminology,generalrequirementsanduser recommendations ISO 86556:2002,Pistonoperatedvolumetricapparatus Part 6:Gravimetricmethodsforthedetermin
30、ationof measurementerror 3 Termsanddefinitions ForthepurposesofthispartofISO 8655,thetermsanddefinitionsgivenin86551apply. 1 l 200 ml ENISO86555:2002 NOTE Generalrequirementsanddefinitionsoftermsforpistonoperatedvolumetric apparatusaregiveninISO86551. Conformitytesting(typeevaluation)ofpistonoperate
31、dvolumetricapparatusisgiveninISO 8655 6. Alternativetest methodssuch asphotometricandtitrimetricmethodsaregiveninISO 86557 . Forallothertests(e.g.qualityassurance bythesupplier,analyticalandmeasuringequipmentqualityassurancebytheuser)seeISO 86556oralternativetestmethods. Forsafetyrequirementsofelect
32、ricallypoweredpistonburettes,seeIEC 610101. BS EN ISO 8655-5:20022 4 Principleofoperation Dispensersareusedfortheaccuraterepetitivedelivery(dispensing)ofpresetliquidvolumes.Theyareoftwotypes: singlestrokedispensersprovidingasingledeliveryfromeachfillingstroke; multipledeliverydispensersorratchetbase
33、dsystemsprovidingmultipledeliveriesfromeachfillingstroke. Thepistoncanbeoperatedmanually,electrically,pneumaticallyorhydraulically.Drivemechanism,pistonand cylindercanbeasingleunitorcanbeseparablebysimplehandactions,sothatdifferentpistonsandcylinders (changeoverunits)canbeusedwiththesamedrivemechani
34、sm. Duringoperation,theaspirationtubedipsintothereservoircontainingthefluidtobedispensed.Afterthesystemhas beenprimedwithfluid,assuringthatitisfreeofanyair,thepistonaspiratesfluidbymovinginonedirectionand deliversthefluidtobemeasuredbymovingintheoppositedirection. Dispenserscanbeconstructedwithorwit
35、houtvalves.Themetrologicalcharacteristicsofdispensersaredependent on,amongotherthings,thematerialandworkmanshipoftheaspirationanddeliverytubingused.Thesuppliershall thereforedeliverthenecessarytubingwiththedispenserorsuggestorstatethecharacteristicsthetubingshallhave inordertomeetthemetrologicaldema
36、ndsplacedonthesystem. 5 Adjustment 5.1 Adispensershallbeadjustedbyitssupplierforthedelivery(Ex)ofitsvolumeandforthestandardreference temperatureof usinggrade 3waterasspecifiedinISO 3696. 5.2 Ifdispensersaredesignedtohavetheirfactorypresetadjustmentalteredbytheuser,thedesignshallprevent unintentional
37、readjustment.Iftheuserreadjuststhedispenser,itshallbeclearlyandunequivocallyindicatedonthe outsideofthedispenserthatreadjustmenthasbeeneffected,forexamplebymeansofamark,abrokenseal,ora labelaffixedbytheuser. 5.3 Typetestingoftheadjustmentshallsatisfytheperformancerequirementsspecifiedinclause 6whent
38、he dispenseristestedinaccordancewithISO 86556. 6 Metrologicalperformancerequirements Theconformitytest(typeevaluation)specifiedinISO 86556evaluatesthetotalsystemofthedispensercomprising thedriveand,ifapplicable,thechangeoverunit(seeclause 4)includingaspirationanddeliverytubing.The conformitytestisca
39、rriedoutinaccordancewithISO 86556by thesupplierpriortotheissuanceofasuppliersdeclarationofconformity,or atesthouseorotherauthorizedbodypriortotheissuanceofacertificateofconformity. Figure 1 Schematicdrawingofdispenserswithandwithoutvalves 20 C ENISO86555:2002 When a dispenser is required for use in
40、a country which has adopted a standard reference temperatureof 27 C (the alternative recommended for tropical use), this figure shall be substituted for 20 C. BS EN ISO 8655-5:2002 3 Forconformitytests,themaximumpermissibleerrorsgiveninTables 1and2shallapply. Table 1 Maximumpermissibleerrorsforsingl
41、estrokedispensers Nominalvolume Maximumpermissiblesystematicerror Maximumpermissiblerandomerror abc 0,01 2,0 0,2 1,0 0,1 0,02 2,0 0,4 0,5 0,1 0,05 1,5 0,75 0,4 0,2 0,1 1,5 1,5 0,3 0,3 0,2 1,0 2,0 0,3 0,6 0,5 1,0 5,0 0,2 1,0 1 0,6 6,0 0,2 2,0 2 0,6 12,0 0,2 4,0 5 0,6 30,0 0,2 10,0 10 0,6 60,0 0,2 20,
42、0 25 0,6 150,0 0,2 50,0 50 0,6 300,0 0,2 100 100 0,6 600,0 0,2 200 200 0,6 1 200 0,2 400 a Expressedasthedeviationofthemeanofatenfoldmeasurementfromthenominalvolumeorfromtheselectedvolume (see ISO 86556:2002,8.4). b Expressedasthecoefficientofvariationofatenfoldmeasurement(seeISO 86556:2002,8.5). c
43、Expressedastherepeatabilitystandarddeviationofatenfoldmeasurement,(seeISO 86556:2002,8.5). Table 2 Maximumpermissibleerrorsformultipledeliverydispensers Nominalvolume Maximumpermissiblesystematicerror Maximumpermissiblerandomerror abc 0,001 5,0 0,05 5,0 0,05 0,002 5,0 0,1 5,0 0,1 0,003 2,5 0,075 0,11 0,01 2,0 0,2 2,5 0,25 0,02 1,5 0,3 2,0 0,4 0,05 1,0 0,5 1,5 0,75 0,1 1,0 1,0 1,0 1,0 0,2 1,0 2,0 1,0 2,0 0,5 1,0 5,0 0,6 3,0 1 1,0 10 0,4 4,0 2 0,8 16 0,4 8,0 50 , 63 00 , 31 5 1 00 , 55 00 , 33 0 25 0,5 125 0,3 75 50 0,5 250 0,25 125 100 0,5 500 0,25 250 200 0,5 1 000 0,25 500 a Expressedas
