1、BRITISH STANDARD BS EN ISO 14680-3:2006 BS 3900-A28:2000 Incorporating amendment no. 1 to BS 3900-A28:2000 (renumbers the BS as BS EN ISO 14680-3:2006) Paints and varnishes Determination of pigment content Part 3: Filtration method This European Standard EN ISO 14680-3:2006 has the status of a Briti
2、sh Standard ICS 87.060.10 BS EN ISO 14680-3:2006 This British 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 July 2000 BSI 2007 ISBN 0 580 36144 6 Nationa
3、l foreword This British Standard was published by BSI. It is the UK implementation of EN ISO 14680-3:2006. It is identical to ISO 14680-3:2000. The UK participation in its preparation was entrusted to Technical Committee STI/10, Test methods for paints. A list of organizations represented on this co
4、mmittee 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 its correct application. Compliance with a British Standard cannot of itself confer immunity from legal obligations. Amendments issu
5、ed since publication Amd. No. Date Comments 16871 28 February 2007 Renumbers the BS as BS EN ISO 14680-3:2006EUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM ENISO146803 February2006 ICS87.060.10 EnglishVersion PaintsandvarnishesDeterminationofpigmentcontentPart 3:Filtrationmethod(ISO146803:2000) Pein
6、turesetvernisDterminationdelateneurenpigment Partie3:Mthodeparfiltration(ISO146803:2000) BeschichtungsstoffeBestimmungdesPigmentgehaltes Teil3:Filtrationsverfahren(ISO146803:2000) ThisEuropeanStandardwasapprovedbyCENon16January2006. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhic
7、hstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheCentralSecretariatortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(Englis
8、h,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheCentralSecretariathasthesamestatusast heofficial versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,Cyprus,CzechRepublic,Denmark,Estonia,Finland,France, G
9、ermany,Greece,Hungary,Iceland,Ireland,Italy,Latvia,Lithuania,Luxembourg,Malta,Netherlands,Norway,Poland,Portugal, Romania, Slovakia,Slovenia,Spain,Sweden,SwitzerlandandUnitedKingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeSta
10、ssart,36B1050Brussels 2006CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.ENISO146803:2006:E Foreword The text of ISO 14680-3:2000 has been prepared by Technical Committee ISO/TC 35 “Paints and varnishes” of the International Organization for Standard
11、ization (ISO) and has been taken over as EN ISO 14680-3:2006 by Technical Committee CEN/TC 139 “Paints and varnishes“, the secretariat of which is held by DIN. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at th
12、e latest by August 2006, and conflicting national standards shall be withdrawn at the latest by August 2006. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Cze
13、ch 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 and United Kingdom. Endorsement notice The text of ISO 14680-3:2000
14、has been approved by CEN as EN ISO 14680-3:2006 without any modifications. EN ISO 14680-3:2006Referencenumber ISO14680-3:2000(E) INTERNATIONAL STANDARD ISO 14680-3 Firstedition 2000-04-01 PaintsandvarnishesDeterminationof pigmentcontent Part3: Filtrationmethod Peintures et vernis Dtermination de la
15、teneur en pigment Partie 3: Mthode par filtration EN ISO 14680-3:2006ii iii Contents Foreword.iv 1 Scope1 2 Normativereferences1 3 Termanddefinition.1 4 Principle2 5 Apparatus.2 6 Reagentsandmaterials2 7 Sampling.2 8 Procedure.3 9 Expressionofresults3 10 Precision.3 11 Testreport4 EN ISO 14680-3:200
16、6iv Foreword ISO(theInternationalOrganizationforStandardization)isaworldwidefederationofnationalstandardsbodies(ISO memberbodies).TheworkofpreparingInternationalStandardsisnormallycarriedoutthroughISOtechnical committees.Eachmemberbodyinterestedinasubjectforwhichatechnicalcommitteehasbeenestablished
17、has therighttoberepresentedonthatcommittee.Internationalorganizations,governmentalandnon-governmental,in liaisonwithISO,alsotakepartinthework.ISOcollaboratescloselywiththeInternationalElectrotechnical Commission(IEC)onallmattersofelectrotechnicalstandardization. InternationalStandardsaredraftedinacc
18、ordancewiththerulesgivenintheISO/IECDirectives,Part3. DraftInternationalStandardsadoptedbythetechnicalcommitteesarecirculatedtothememberbodiesforvoting. PublicationasanInternationalStandardrequiresapprovalbyatleast75%ofthememberbodiescastingavote. Attentionisdrawntothepossibilitythatsomeoftheelement
19、softhispartofISO14680maybethesubjectof patentrights.ISOshallnotbeheldresponsibleforidentifyinganyorallsuchpatentrights. InternationalStandardISO14680-3waspreparedbyTechnicalCommitteeISO/TC35, Paints and varnishes, SubcommitteeSC9, General test methods for paints and varnishes. ISO14680consistsofthef
20、ollowingparts,underthegeneraltitle Paints and varnishes Determination of pigment content: Part 1: Centrifuge method Part 2: Ashing method Part 3: Filtration method EN ISO 14680-3:2006 1 PaintsandvarnishesDeterminationofpigmentcontent Part3: Filtrationmethod 1 Scope ThispartofISO14680isoneofaseriesof
21、standardsdealingwiththesamplingandtestingofpaints,varnishes andrelatedproducts. Itspecifiesamethodfordeterminingthepigmentcontentofpaintsinwhichpotassiumhydroxidesolutionisadded tocoagulatethepigmentandtheresultingsolidsfilteredoff.Themethodisparticularlyapplicabletocoating materialscontainingcarbon
22、black,veryfinelydividedsilicondioxide,veryfinelydividedtitaniumdioxide,organic pigmentsorpolymerdispersions.Itisnotapplicabletomanywater-dilutablepaintsbecausethewholebinderwill coagulatewhenthepotassiumhydroxidesolutionisadded. Thepigmentcontentofcoatingmaterialscanalsobedeterminedbyacentrifugemeth
23、od(seeISO14680-1)orby anashingmethod(seeISO14680-2). 2 Normativereferences Thefollowingnormativedocumentscontainprovisionswhich,throughreferenceinthistext,constituteprovisionsof thispartofISO14680.Fordatedreferences,subsequentamendmentsto,orrevisionsof,anyofthesepublications donotapply.However,parti
24、estoagreementsbasedonthispartofISO14680areencouragedtoinvestigatethe possibilityofapplyingthemostrecenteditionsofthenormativedocumentsindicatedbelow.Forundated references,thelatesteditionofthenormativedocumentreferredtoapplies.MembersofISOandIECmaintain registersofcurrentlyvalidInternationalStandard
25、s. ISO1513:1992, Paints and varnishes Examination and preparation of samples for testing. ISO15528: 1) , Paints, varnishes and raw materials for paints and varnishes Sampling. 3 Termanddefinition ForthepurposesofthispartofISO14680,thefollowingtermanddefinitionapply. 3.1 pigmentcontent,determinedbyfi
26、ltration theproportionbymassofsolidparticleswhichisleftbehindasaresidueonfiltrationunderspecifiedconditionsin theproductundertest NOTE Itincludespigments,extendersandothersolidconstituentsoftheproduct. 1)Tobepublished.(RevisionofISO842:1984andISO1512:1991) EN ISO 14680-3:20062 4Principle Afterithasb
27、eendilutedwithsolventandasolutionofpotassiumhydroxideinmethanolhasbeenadded,atest portionoftheproductundertestisfilteredusingaglassfiltercruciblecontainingabedoffilteringaid.Thesolids removedbyfiltrationaredriedandweighed.Inthecaseofcompletelysolublebinders,thepigmentcontentis calculatedfromthemasso
28、fthesolidsandthatofthetestportion. 5 Apparatus Ordinarylaboratoryapparatusandglassware,togetherwiththefollowing: 5.1 50mlwide-neckconicalflask,withconicalsocketandfittingpolytetrafluoroethylenestopper.Theconical socketshallnotbegreased. 5.2 G3glassfiltercrucible(poresize15 mto40 m). 5.3 Suctionflask
29、,withfilteradapterandrubberseal. 5.4 5mlsafetypipette. 5.5 50mlmeasuringcylinder. 5.6 Dryingoven,withforcedventilation,capableofbeingmaintainedat(105 2)C.Theairflowshallbe horizontal. WARNINGAtthetemperatureused,organicsolventcanformexplosivemixtureswithair.Itistherefore importantthatthesolventvapou
30、rconcentrationintheovenisnotallowedtoexceedavalueatwhichan explosioncouldoccur. Forrefereetests,ovensofthesamedesignshallbeusedbyallparties. 5.7 Analyticalbalance,capableofweighingto0,001g. 5.8 Desiccator. 6 Reagentsandmaterials 6.1 Filteringaid,forexamplediatomaceousearth. 6.2 Potassiumhydroxidesol
31、utioninmethanol,c(KOH)=1mol/l. 6.3 Methanol,analyticalgrade. 6.4 Suitableorganicsolvent. 7 Sampling Takearepresentativesampleoftheproducttobetested,asdescribedinISO15528. Examineandprepareeachsamplefortesting,asdescribedinISO1513. EN ISO 14680-3:2006 3 8 Procedure 8.1 Preparationofglassfiltercrucibl
32、e Suspend10goffilteringaid(6.1)in150mlofdistilledwater.Pourthesuspensionintotheglassfiltercrucible(5.2) andremovethewaterbysuction.Drytheglassfiltercruciblewiththebedoffilteringaidfor1hat(105 2)Cin thedryingoven(5.6),cooltoroomtemperatureinthedesiccator(5.8)andweightothenearest0,001g. 8.2 Determinat
33、ionofpigmentcontent Carryoutthetestinduplicate. Weigh1gto2gofsample(m 2 )tothenearest0,001gintotheconicalflask(5.1)andaddimmediately20mlofa suitableorganicsolventfromthemeasuringcylinder(5.5).Then,usingthesafetypipette(5.4),add1,5mlof methanolicpotassiumhydroxidesolutiontothecontentsoftheflaskandclo
34、seitwiththestopper. After5min,filterthecontentsoftheflaskintotheweighedglassfiltercrucible(m 1 )preparedasdescribedin8.1. Rinseanyresidueintheflaskintothecrucibleusing20mlofasuitableorganicsolventfromameasuringcylinder, thenwashthesolidsonthefilterwithmethanoluntiltheyarefreeofalkali.Drytheglassfilt
35、ercrucibletoconstant massintheovenat105C,coolittoroomtemperatureinthedesiccatorandweightothenearest0,001g(m 3 ). 9 Expressionofresults Calculatethepigmentcontentasapercentagebymassusingthefollowingequation: Pigmentcontent= mm m 31 2 100 where m 1 isthemass,ingrams,ofthepreparedglassfiltercrucible; m
36、 2 isthemass,ingrams,ofthetestportion; m 3 isthemass,ingrams,ofthepreparedglassfiltercrucibleandthesolids. Ifthetworesults(duplicates)differbymorethan0,5%(relativetothemean),repeattheproceduredescribedin clause8. Calculatethemeanoftwovalidresults(replicates)andreportthetestresulttothenearest0,1%byma
37、ss. 10Precision 10.1Repeatability,r Thevaluebelowwhichtheabsolutedifferencebetweentwosingletestresults,eachthemeanofduplicates, obtainedonidenticalmaterialbyoneoperatorinonelaboratorywithinashortintervaloftimeusingthe standardizedtestmethodmaybeexpectedtoliewitha95%probabilityis0,5%. 10.2Reproducibi
38、lity,R Thevaluebelowwhichtheabsolutedifferencebetweentwotestresults,eachthemeanofduplicates,obtainedon identicalmaterialbyoperatorsindifferentlaboratoriesusingthestandardizedtestmethodmaybeexpectedtolie witha95%probabilityis1%. EN ISO 14680-3:20064 11Testreport Thetestreportshallcontainatleastthefol
39、lowinginformation: a) alldetailsnecessarytoidentifytheproducttested; b) areferencetothispartofISO14680(ISO14680-3); c) theorganicsolventused; d) theresultofthetestasindicatedinclause9,includingtheindividualvaluesandthemeanvalue; e) anydeviationfromthetestmethodspecified; f) thedateofthetest. EN ISO
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