1、BRITISH STANDARD BS EN 14469-4:2004 Pigments and extenders Testing of colouring materials in plasticized polyvinyl chloride (PVC-P) Part 4: Determination of bleeding of colouring materials The European Standard EN 14469-4:2004 has the status of a British Standard ICS 83.040.30 BS EN 14469-4:2004 Thi
2、s British Standard was published under the authority of the Standards Policy and Strategy Committee on 11 May 2004 BSI 11 May 2004 ISBN 0 580 43762 0 National foreword This British Standard is the official English language version of EN 14469-4:2004. The UK participation in its preparation was entru
3、sted to Technical Committee STI/1, Pigments, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document
4、may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. User
5、s are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change,
6、 and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 7 and a back cover. The BSI copyright notice displayed in this docu
7、ment indicates when the document was last issued. Amendments issued since publication Amd. No. Date CommentsEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM EN144694 April2004 ICS83.040.30 Englishversion PigmentsandextendersTestingofcolouringmaterialsin plasticizedpolyvinylchloride(PVCP)Part4:Determin
8、ationof bleedingofcolouringmaterials PigmentsetmatiresdechargeEssaidesmatires colorantesdanslechloruredepolyvinyleplastifi(PVCP) Partie2:Dterminationdelexsudationdesmatires colorantes PigmenteundFllstoffePrfungvonFarbmittelnin weichmacherhaltigemPolyvinylchlorid(PVCP)Teil4: BestimmungdesAusblutensvo
9、nFarbmitteln ThisEuropeanStandardwasapprovedbyCENon2February2004. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational
10、 standardsmaybeobtainedonapplicationtotheCentralSecretariatortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheCentralSecretariathasthesamestatusast
11、 heofficial versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,Cyprus,CzechRepublic,Denmark,Estonia,Finland,France, Germany,Greece,Hungary,Iceland,Ireland,Italy,Latvia,Lithuania,Luxembourg,Malta,Netherlands,Norway,Poland,Portugal, Slovakia, Slovenia,Spain,Sweden,SwitzerlandandUnitedK
12、ingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2004CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.EN144694:2004:EEN144694:2004(E) 2 Foreword Thisdocum
13、ent(EN144694:2004)hasbeenpreparedbyTechnicalCommitteeCEN/TC298“Pigmentsand extenders”,thesecretariatofwhichisheldbyDIN. ThisEuropeanStandardshallbegiventhestatusofanationalstandard,eitherbypublicationofanidenticaltextor byendorsement,atthelatestbyOctober2004,andconflictingnationalstandardsshallbewit
14、hdrawnatthelatest byOctober2004. AnnexAisinformative. AccordingtotheCEN/CENELECInternalRegulations,thenationalstandardsorganizationsofthefollowing countriesareboundtoimplementthisEuropeanStandard:Austria,Belgium,Cyprus,CzechRepublic,Denmark, Estonia,Finland,France,Germany,Greece,Hungary,Iceland,Irel
15、and,Italy,Latvia,Lithuania,Luxembourg,Malta, Netherlands,Norway,Poland,Portugal,Slovakia,Slovenia,Spain,Sweden,SwitzerlandandUnitedKingdom.EN144694:2004(E) 3 1Scope ThisPartofEN14469specifiesamethodofestablishingandevaluatingquantitativelythebleedingofpigments fromsheetsofcolouredPVCPintomaterialoft
16、hesamekindbroughtintocontactwiththem.Italsosetsoutthe wayinwhichspecimenspreparedinaccordancewithEN144692shallbetested. NOTE ItcanalsobeusedtodeterminebleedingfromotherpolymersintowhitePVCP. ThisPartofEN14469doesnotdealwithpigmentblooming(seealsoannexA(informative). 2 Normativereferences ThisEuropea
17、nStandardincorporatesbydatedorundatedreference,provisionsfromotherpublications.These normativereferencesarecitedattheappropriateplacesinthetext,andthepublicationsarelistedhereafter.For datedreferences,subsequentamendmentstoorrevisionsofanyofthesepublicationsapplytothisEuropean Standardonlywhenincorp
18、oratedinitbyamendmentorrevision.Forundatedreferencesthelatesteditionofthe publicationreferredtoapplies(includingamendments). EN144692, PigmentsandextendersTestingofcolouringmaterialsinplasticizedpolyvinylchloride(PVCP) Part2:Preparationoftestspecimens. EN20105A03,TextilesTestsforcolourfastnessPartA0
19、3:Greyscaleforassessingstaining(ISO105 A03:1993). 3 Termsanddefinitions ForthepurposesofthisEuropeanStandard,thefollowingtermsanddefinitionsapply. 3.1 blooming formationofadepositofacolouringmaterialfromthepolymeronthesurfaceofafilm 3.2 bleeding processofdiffusionofacolouringmaterialfromthepolymerin
20、toandthroughapolymerbeneath,thusproducing anundersirablestainingorcolourchange 3.3 migration movementofacolouringmaterialfromapolymertothesurface(blooming)ortoanothermedium(bleeding) 4Apparatus 4.1Drying oven withforcedaircirculationandcapableofmaintainingatemperatureof(805)C. 4.2 Whitecontactsheets
21、 preparedinaccordancewithEN144692,minimumsize75mmx75mmx0,5mm.EN144694:2004(E) 4 4.3 Aluminiumorplateglasssheets withflatsurfaces,ofasizenotlessthanthecontactsheets. 4.4Load withamassofnotlessthan500g. 4.5Roller 5 Testspecimen Testspecimensof50mmx50mmproducedpreferablybypressingshouldbeused,asdescrib
22、edinEN144692. 6Procedure Placethespecimenbetweentwowhitecontactsheets(4.2)ensuringclosecontactbetweenspecimenandsheets bysqueezingouttheairwitharoller.Thenenclosethesheetsandspecimenbetweentwoplates(4.3)andload withatleast500g(4.4).Ifrequired,severalspecimensheetsetsmaybeplacedoneontopoftheother,asl
23、ongas theyareseparatedbysuitable,noncolouredandnonopticallywhitenedpaper,e.g.filterpaper.Takecareto ensurethatthespecimenslieexactlyaboveoneother. Keepthesheetsinthedryingoven(4.1)for24hat(805)C.Thenseparatethewhitecontactsheetsfromthe specimenandcarryouttheevaluationassoonastheyhavecooledtoroomtemp
24、erature.Ifthespecimenisequally smoothonbothsides,eithercontactsheetmaybeused.Otherwise,selectthewhitecontactsheetwhichwasin contactwiththesmoothersurface. 7Evaluation Makeavisualevaluationofanystainingofthewhitecontactsheetwiththeaidofthegreyscaleforassessing staininginaccordancewithEN20105A03.There
25、ferenceusedforvisualevaluationisthewhiteedgeofthewhite contactsheetwhichwasnotincontactwiththespecimen. Theevaluationshouldbecarriedoutassoonasthetestprocedurehasbeencompleted,asfurthercolourchanges inthewhitecontactsheetsmayoccurasaresultofcontinuingdiffusionintothesheets,iftheyarestoredforany leng
26、thoftime.EN144694:2004(E) 5 8 Testreport Thetestreportshallcontainatleastthefollowinginformation: a)alldataneededtoidentifythepigmenttested; b)referencetothisEuropeanStandard(EN144694); c)designationofthespecimenwithreferencetothemethodofitspreparationinaccordancewithEN144692; d)quantityofcolouringm
27、aterialtestedinpercent(%)addedtothebasicmixtureforthespecimenconcerned; e)testresult,givingthecolourdifferenceexpressedasaratingonthegreyscale; f)anydeviationfromthetestmethodspecified; g)dateoftesting.EN144694:2004(E) 6 Annex A (informative) Explanations Inpracticemigrationisfrequentlyusedtodescrib
28、ebothbleedingandblooming.Infact,migrationcanonlybeused asageneraltermforaprocessofwhichbloomingandbleedingarerelatedbutdistinctmanifestations. ThisPartofEN14469,whichisalignedwithENISO183“PlasticsQualitativeevaluationofthebleedingof colorants(ISO183:1976)“,dealswiththedeterminationofbleeding.Exhaust
29、iveinvestigationanddiscussionhave shownthataseparatestandardontestingofbloomingisnotpracticable.Althoughbloomingofcolouringmaterials dependsinprincipleonthesameparametersasbleeding,itdiffersinthatitislimitedtolowappliedconcentrations whichvaryaccordingtothecolorantused.Practicalexperimentsshowthatev
30、enwhenallthetestconditionsare strictlyobserved,itisnotpossibletoobtainanadequatedegreeofrepeatabilityofbloomingphenomena.Itis importantnottoconfusechalkingorplateoutwithblooming. SincethisPartofEN14469,incontrasttoENISO183,dealsprimarilywiththetestingofpigments,precise specificationshavebeengivenfor
31、specimenandcontactsheets.Experiencehasshownthatthethicknessofthe specimenisunimportant.Forthethicknessofthecontactsheets,ontheotherhand,alowerlimithasbeensetin ordertofacilitatevisualevaluation.EN144694:2004(E) 7 Bibliography 1 ENISO183, PlasticsQualitativeevaluationofthebleedingofcolorants(ISO183:1
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