1、BRITISH STANDARD BS EN ISO 14680-2:2006 BS 3900-A27:2006 Incorporating amendment no.1 to BS 3900-A27:2000 (renumbers the BS as BS EN ISO 14680-2:2006) Paints and varnishes Determination of pigment content Part 2: Ashing method The European Standard EN ISO 14680-2:2006 has the status of a British Sta
2、ndard ICS 87.060.10 BS EN ISO 14680-2:2006 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 36145 4 National fore
3、word This British Standard was published by BSI. It is the UK implementation of EN ISO 14680-2:2006. It is identical with ISO 14680-2:2000. The UK participation in its preparation was entrusted to Technical Committee STI/10, Test methods for paints. A list of organizations represented on STI/10 can
4、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 confer immunity from legal obligations. Amendments issued since publication A
5、md. No. Date Comments 16872 28 February 2007 Renumbers the BS as BS EN ISO 14680-2:2006EUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM ENISO146802 February2006 ICS87.060.10 EnglishVersion PaintsandvarnishesDeterminationofpigmentcontentPart 2:Ashingmethod(ISO146802:2000) PeinturesetvernisDterminationd
6、elateneurenpigment Partie2:Mthodeparcalcination(ISO146802:2000) BeschichtungsstoffeBestimmungdesPigmentgehaltes Teil2:Veraschungsverfahren(ISO146802:2000) ThisEuropeanStandardwasapprovedbyCENon16January2006. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsfo
7、rgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheCentralSecretariatortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversion
8、inanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheCentralSecretariathasthesamestatusast heofficial versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,Cyprus,CzechRepublic,Denmark,Estonia,Finland,France, Germany,Greece,Hungary,Ice
9、land,Ireland,Italy,Latvia,Lithuania,Luxembourg,Malta,Netherlands,Norway,Poland,Portugal, Romania, Slovakia,Slovenia,Spain,Sweden,SwitzerlandandUnitedKingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 200
10、6CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.ENISO146802:2006:E Foreword The text of ISO 14680-2:2000 has been prepared by Technical Committee ISO/TC 35 “Paints and varnishes” of the International Organization for Standardization (ISO) and has bee
11、n taken over as EN ISO 14680-2:2006 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 the latest by August 2006,
12、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, Czech Republic, Denmark, Est
13、onia, 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 14680-2:2000 has been approved by CEN
14、as EN ISO 14680-2:2006 without any modifications. EN ISO 14680-2:2006Referencenumber ISO14680-2:2000(E) INTERNATIONAL STANDARD ISO 14680-2 Firstedition 2000-04-01 PaintsandvarnishesDeterminationof pigmentcontent Part2: Ashingmethod Peintures et vernis Dtermination de la teneur en pigment Partie 2: M
15、thode par calcination EN ISO 14680-2:2006ii iii Contents Foreword.iv 1 Scope1 2 Normativereferences1 3 Termanddefinition.1 4 Principle2 5 Apparatus.2 6 Sampling.2 7 Procedure.2 8 Expressionofresults3 9 Precision.3 10 Testreport3 EN ISO 14680-2:2006iv Foreword ISO(theInternationalOrganizationforStand
16、ardization)isaworldwidefederationofnationalstandardsbodies(ISO memberbodies).TheworkofpreparingInternationalStandardsisnormallycarriedoutthroughISOtechnical committees.Eachmemberbodyinterestedinasubjectforwhichatechnicalcommitteehasbeenestablishedhas therighttoberepresentedonthatcommittee.Internatio
17、nalorganizations,governmentalandnon-governmental,in liaisonwithISO,alsotakepartinthework.ISOcollaboratescloselywiththeInternationalElectrotechnical Commission(IEC)onallmattersofelectrotechnicalstandardization. InternationalStandardsaredraftedinaccordancewiththerulesgivenintheISO/IECDirectives,Part3.
18、 DraftInternationalStandardsadoptedbythetechnicalcommitteesarecirculatedtothememberbodiesforvoting. PublicationasanInternationalStandardrequiresapprovalbyatleast75%ofthememberbodiescastingavote. AttentionisdrawntothepossibilitythatsomeoftheelementsofthispartofISO14680maybethesubjectof patentrights.I
19、SOshallnotbeheldresponsibleforidentifyinganyorallsuchpatentrights. InternationalStandardISO14680-2waspreparedbyTechnicalCommitteeISO/TC35, Paints and varnishes, SubcommitteeSC9, General test methods for paints and varnishes. ISO14680consistsofthefollowingparts,underthegeneraltitle Paints and varnish
20、es Determination of pigment content: Part 1: Centrifuge method Part 2: Ashing method Part 3: Filtration method EN ISO 14680-2:2006 1 PaintsandvarnishesDeterminationofpigmentcontent Part2: Ashingmethod 1 Scope ThispartofISO14680isoneofaseriesofstandardsdealingwiththesamplingandtestingofpaints,varnish
21、es andrelatedproducts. Itspecifiesamethodfordeterminingthepigmentcontentofpaintsinwhichtheproductundertestisashed.The methodisnotapplicabletocoatingmaterialscontainingaluminium,organicpigmentsand/ordyestuffs,orinorganic pigmentstreatedwithorganiccompounds.Suchconstituents,whichcouldmakeupabout10%oft
22、hepigment,will belostduringashing. Asthestateofmanypigmentsandextenderschangesunderthespecifiedtestconditions,itwilldependonthe compositionandthechosenashingtemperaturewhethertheactualpigmentcontentoftheproductundertestcan bededucedfromtheapparentpigmentcontentfoundbythismethod. Themethodisgenerally
23、notsuitableforUVpaintsandvarnishesorthosecontainingreactivediluentsrequiring specialheatingconditions. Thepigmentcontentofcoatingmaterialscanalsobedeterminedbyacentrifugemethod(seeISO14680-1)orbya filtrationmethod(seeISO14680-3). 2 Normativereferences Thefollowingnormativedocumentscontainprovisionsw
24、hich,throughreferenceinthistext,constituteprovisionsof thispartofISO14680.Fordatedreferences,subsequentamendmentsto,orrevisionsof,anyofthesepublications donotapply.However,partiestoagreementsbasedonthispartofISO14680areencouragedtoinvestigatethe possibilityofapplyingthemostrecenteditionsofthenormati
25、vedocumentsindicatedbelow.Forundated references,thelatesteditionofthenormativedocumentreferredtoapplies.MembersofISOandIECmaintain registersofcurrentlyvalidInternationalStandards. ISO1513:1992, Paints and varnishes Examination and preparation of samples for testing. ISO15528: 1) , Paints, varnishes
26、and raw materials for paints and varnishes Sampling. 3 Termanddefinition ForthepurposesofthispartofISO14680,thefollowingtermanddefinitionapply. 1)Tobepublished.(RevisionofISO842:1984andISO1512:1991) EN ISO 14680-2:20062 3.1 pigmentcontent,determinedbyashing theproportionbymassoftheproductundertestwh
27、ichisleftasaresidueafterashingunderthespecified conditions NOTE Itincludesinorganicpigments,extendersandothersolidconstituentsoftheproductwhicharenotvolatileunderthe testconditions;however,theirstatemayhavealtered. 4Principle Afterevaporatingthesolventinatestportionoftheproductundertest,theresidueis
28、ashedeitheratabout600C to900C,orat450Cinthepresenceofcarbonates.Thepresenceofcarbonateshouldbedeterminedbysome other,qualitativeanalyticaltechnique.Thepigmentcontentiscalculatedfromthemassoftheignitionresidueand thatofthetestportion. NOTE Somebindersarenotfullyashedat450C.Theresultobtainedatthattemp
29、eraturemaythereforehavepoor repeatability. 5 Apparatus Ordinarylaboratoryapparatusandglassware,togetherwiththefollowing: 5.1 Porcelaincrucible,tallform. 5.2 Dryingoven,withforcedventilation,capableofbeingmaintainedat(80 2)C.Theairflowshallbe horizontal. WARNINGAtthetemperatureused,organicsolventcanf
30、ormexplosivemixtureswithair.Itistherefore importantthatthesolventvapourconcentrationintheovenisnotallowedtoexceedavalueatwhichan explosioncouldoccur. Forrefereetests,ovensofthesamedesignshallbeusedbyallparties. 5.3 Crucibletongs. 5.4 Mufflefurnaceorfastincinerator. 5.5 Analyticalbalance,capableofwei
31、ghingto0,001g. 5.6 Desiccator. 6 Sampling Takearepresentativesampleoftheproducttobetested,asdescribedinISO15528. Examineandprepareeachsamplefortesting,asdescribedinISO1513. 7 Procedure Carryoutthetestinduplicate. Heataporcelaincrucible(5.1)toconstantmass(m 1 )inthemufflefurnaceorfastincinerator(5.4)
32、atatemperature inaccordancewithclause4and,aftercoolinginthedesiccator(5.6),weighabout2gofthesample(m 2 )tothe nearest0,001gintoit.Placetheporcelaincrucibleintheoven(5.2)at(80 2)Candheatuntilallthesolventhas evaporated.Thenremoveitfromtheovenandplaceitinthemufflefurnaceorfastincineratorandheatthelatt
33、erto theashingtemperature(seeclause4).Inmostcases,ashingwillbecompleteafter2h. EN ISO 14680-2:2006 3 Cooltheporcelaincruciblebyplacingitinthedesiccatorforatleast30min.Weighittothenearest0,001g,then placeitinthemufflefurnaceorfastincineratoragainfor15min.Coolittoroomtemperatureinthedesiccatorand weig
34、hitagain.Repeattheseoperationsuntilthemass(m 3 )isconstant. 8 Expressionofresults Calculatethepigmentcontentasapercentagebymassusingthefollowingequation: Pigmentcontent= mm m 31 2 100 where m 1 isthemass,ingrams,oftheporcelaincrucible; m 2 isthemass,ingrams,ofthetestportion; m 3 isthemass,ingrams,of
35、theporcelaincrucibleandresidue. Ifthetworesults(duplicates)differbymorethan0,5%(relativetothemean),repeattheproceduredescribedin clause7. Calculatethemeanoftwovalidresults(replicates)andreportthetestresulttothenearest0,1%bymass. 9 Precision 9.1 Repeatability,r Thevaluebelowwhichtheabsolutedifference
36、betweentwosingletestresults,eachthemeanofduplicates, obtainedonidenticalmaterialbyoneoperatorinonelaboratorywithinashortintervaloftimeusingthe standardizedtestmethodmaybeexpectedtoliewitha95%probabilityis2%. 9.2 Reproducibility,R Thevaluebelowwhichtheabsolutedifferencebetweentwotestresults,eachtheme
37、anofduplicates,obtainedon identicalmaterialbyoperatorsindifferentlaboratoriesusingthestandardizedtestmethodmaybeexpectedtolie witha95%probabilityis4%. 10Testreport Thetestreportshallcontainatleastthefollowinginformation: a) alldetailsnecessarytoidentifytheproducttested; b) areferencetothispartofISO1
38、4680(ISO14680-2); c) theashingtemperatureused; d) theresultofthetestasindicatedinclause8,includingtheindividualvaluesandthemeanvalue; e) anydeviationfromthetestmethodspecified; f) thedateofthetest. EN ISO 14680-2:2006BS EN ISO 14680-2:2006 BS 3900-A27:2006 BSI 389 Chiswick High Road London W4 4AL BS
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