1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS EN ISO 3262-18:2000 In
2、corporating Corrigendum No. 1 The European Standard EN ISO 3262-18:2000 has the status of a British Standard ICS 87.060.10 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Extenders for paints Specifications and methods of test Part 18: Precipitated sodium aluminium silicateThi
3、s 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 August 2000 BSI 09-2000 ISBN 0 580 36098 9 BS EN ISO 3262-18:2000 Amendments issued since publica
4、tion Amd. No. Date Comments 11072 Corrigendum No. 1 September 2000 Addition of annex ZA National foreword This British Standard is the official English language version of EN ISO 3262-18:2000. It is identical with ISO 3262-18:2000. Together with the other parts of BS EN ISO 3262, it will supersede B
5、S 1795:1976 which is declared obsolescent. The UK participation in its preparation was entrusted to Technical Committee STI/1, Pigments and extenders, which has the responsibility to: aid enquirers to understand the text; present to the responsible international/European committee any enquiries on t
6、he interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references Attention is draw
7、n to the fact that CEN and CENELEC Standards normally include an annex which lists normative references to international publications with their corresponding European publications. The British Standards which implement international or European publications referred to in this document may be found
8、 in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards
9、are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, the EN ISO title page, the EN ISO foreword page, the ISO title page, pages ii to
10、 iv, pages 1 to 11, the annex ZA page, an inside back cover and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued.EUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM ENISO326218 April2000 ICS87.060.10 Englishversion ExtendersforpaintsSpecificati
11、onsandmethodsoftestPart 18:Precipitatedsodiumaluminiumsilicate(ISO3262:2000) MatiresdechargepourpeinturesSpcificationset mthodesdessaiPartie18:Silicoaluminiumdesodium prcipit(ISO326218:2000) ThisEuropeanStandardwasapprovedbyCENon15April2000. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegula
12、tionswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheCentralSecretariatortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversio
13、ns(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheCentralSecretariathasthesamestatusast heofficial versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,
14、Greece, Iceland,Ireland,Italy,Luxembourg,Netherlands,Norway,Portugal,Spain,Sweden,SwitzerlandandUnitedKingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG CentralSecretariat:ruedeStassart,36B1050Brussels 2000CEN Allrightsofexploitationinanyformandbyany
15、meansreserved worldwideforCENnationalMembers. Ref.No.ENISO326218:2000EForeword ThetextoftheInternationalStandard ISO326218:2000hasbeenpreparedbyTechnicalCommittee ISO/TC35“Paints andvarnishes“incollaboratio nwithTechnicalCommitteeCEN/T C298“Pigmentsand extenders“,thesecretariatofwhichisheldbyDIN. Th
16、isEuropeanStandardshallbegiventhestatusofanationalstandard,eitherbypublicationofanidentical text orby endorsement,a t thelatestby October2000 , andconflictin g nationalstandards shallbewithdrawn atthelatestbyOctober2000. AccordingtotheCEN/CENELE C InternalRegulations,thenationalstandardsorganization
17、s ofthefollowing countriesareboundtoimplementthisEuropea nStandard:Austria,Belgium,CzechRepublic,Denmark, Finland,France,Germany,Greece,Iceland,Ireland,Italy,Luxembourg,Netherlands,Norway,Portugal, Spain,Sweden,SwitzerlandandtheUnitedKingdom. Endorsementnotice ThetextoftheInternationalStandardISO326
18、218:2000hasbeenapprovedbyCENasaEuropean Standardwithoutanymodification. NOTE:NormativereferencestoInternationalStandardsarelistedinannexZA(normative). EN ISO 3262-18:2000Referencenumber ISO3262-18:2000(E) INTERNATIONAL STANDARD ISO 3262-18 Firstedition 2000-04-15 ExtendersforpaintsSpecifications and
19、methodsoftest Part18: Precipitatedsodiumaluminiumsilicate Matires de charge pour peintures Spcifications et mthodes dessai Partie 18: Silicoaluminate de sodium prcipit EN ISO 3262-18:2000ii EN ISO 3262-18:2000 iii Foreword ISO(theInternationalOrganizationforStandardization)isaworldwidefederationofna
20、tionalstandardsbodies (ISOmemberbodies).TheworkofpreparingInternationalStandardsisnormallycarriedoutthroughISOtechnical committees.Eachmemberbodyinterestedinasubjectforwhichatechnicalcommitteehasbeenestablishedhas therighttoberepresentedonthatcommittee.Internationalorganizations,governmentalandnon-g
21、overnmental,in liaisonwithISO,alsotakepartinthework.ISOcollaboratescloselywiththeInternationalElectrotechnical Commission(IEC)onallmattersofelectrotechnicalstandardization. InternationalStandardsaredraftedinaccordancewiththerulesgivenintheISO/IECDirectives,Part3. DraftInternationalStandardsadoptedby
22、thetechnicalcommitteesarecirculatedtothememberbodiesforvoting. PublicationasanInternationalStandardrequiresapprovalbyatleast75%ofthememberbodiescastingavote. AttentionisdrawntothepossibilitythatsomeoftheelementsofthispartofISO3262maybethesubjectofpatent rights.ISOshallnotbeheldresponsibleforidentify
23、inganyorallsuchpatentrights. InternationalStandardISO3262-18waspreparedbyTechnicalCommitteeISO/TC35, Paints and varnishes, SubcommitteeSC2, Pigments and extenders. Togetherwiththeotherparts(seebelow),thispartofISO3262cancelsandreplacesISO3262:1975,whichhas beentechnicallyrevised.Part1comprisesthedef
24、initionofthetermextenderandanumberoftestmethodsthat areapplicabletomostextenders,whilstpart2andthefollowingpartsspecifyrequirementsand,whereappropriate, particulartestmethodsforindividualextenders. ISO3262consistsofthefollowingparts,underthegeneraltitle Extenders for paints Specifications and method
25、s of test: Part 1: Introduction and general test methods Part 2: Barytes (natural barium sulfate) Part 3: Blanc fixe Part 4: Whiting Part 5: Natural crystalline calcium carbonate Part 6: Precipitated calcium carbonate Part 7: Dolomite Part 8: Natural clay Part 9: Calcined clay Part 10: Natural talc/
26、chlorite in lamellar form Part 11: Natural talc, in lamellar form, containing carbonates Part 12: Muscovite-type mica Part 13: Natural quartz (ground) EN ISO 3262-18:2000iv Part 14: Cristobalite Part 15: Vitreous silica Part 16: Aluminium hydroxides Part 17: Precipitated calcium silicate Part 18: Pr
27、ecipitated sodium aluminium silicate Part 19: Precipitated silica Part 20: Fumed silica Part 21: Silica sand (unground natural quartz) Part 22: Flux-calcined kieselguhr EN ISO 3262-18:2000 1 ExtendersforpaintsSpecificationsandmethodsoftest Part18: Precipitatedsodiumaluminiumsilicate 1 Scope Thispart
28、ofISO3262specifiesrequirementsandcorrespondingmethodsoftestforprecipitatedsodiumaluminium silicate. 2 Normativereferences Thefollowingnormativedocumentscontainprovisionswhich,throughreferenceinthistext,constituteprovisionsof thispartofISO3262.Fordatedreferences,subsequentamendmentsto,orrevisionsof,a
29、nyofthesepublications donotapply.However,partiestoagreementsbasedonthispartofISO3262areencouragedtoinvestigatethe possibilityofapplyingthemostrecenteditionsofthenormativedocumentsindicatedbelow.Forundated references,thelatesteditionofthenormativedocumentreferredtoapplies.MembersofISOandIECmaintain r
30、egistersofcurrentlyvalidInternationalStandards. ISO648:1977, Laboratory glassware One-mark pipettes. ISO787-2:1981, General methods of test for pigments and extenders Part 2: Determination of matter volatile at 105 C. ISO787-5:1980, General methods of test for pigments and extenders Part 5: Determin
31、ation of oil absorption value. ISO787-9:1981, General methods of test for pigments and extenders Part 9: Determination of pH value of an aqueous suspension. ISO3262-1:1997, Extenders for paints Specifications and methods of test Part 1: Introduction and general test methods. ISO3696:1987, Water for
32、analytical laboratory use Specification and test methods. ISO5794-1:1994, Rubber compounding ingredients Silica, precipitated, hydrated Part 1: Non-rubber tests. ISO15528: 1) , Paints, varnishes and raw materials for paints and varnishes Sampling. 3 Termanddefinition ForthepurposesofthispartofISO326
33、2,thefollowingtermanddefinitionapply. 3.1 precipitatedsodiumaluminiumsilicate amorphoussilicateprecipitatedbyreactionofsodiumsilicatesolutionwithamineralacidand/oranaluminiumsalt 1)Tobepublished.(RevisionofISO842:1984andISO1512:1991) EN ISO 3262-18:20002 4 Requirementsandtestmethods Forprecipitateds
34、odiumaluminiumsilicatecomplyingwiththispartofISO3262,theessentialrequirementsare specifiedinTable1andtheconditionalrequirementsarelistedinTable2. Table1Essentialrequirements Characteristic Unit Requirement Testmethod Silicacontent,min. 75 Seeclause6or7 Oxidecontent Na 2 O 3to10 Al 2 O 3 %(m/m) 5to15
35、 Seeclause7 Residueon45msieve,max. %(m/m) 2 Seeclause8 Lightness,min. % 95 Testmethodinpreparation Mattervolatileat105C,max. %(m/m) 10 ISO787-2 Lossonignition %(m/m) 3to12 ISO3262-1 Oilabsorptionvalue a ,min. g/100g 70 ISO787-5 pHvalueofaqueoussuspension 7to12 ISO787-9 a Atestmethodwithhigherreprodu
36、cibilityandrepeatabilityisdescribedinASTMD2414-97, Standard test method for carbon black n-Dibutyl phthalate absorption number. However, the results cannot be compared directly with oil absorption values determined in accordance withISO787-5. Table2Conditionalrequirements Characteristic Unit Require
37、ment Testmethod Particlesizedistribution (instrumentalmethod) %(m/m) Tobeagreedbetweenthe interestedparties Specificsurfacearea m 2 /g Tobeagreedbetweenthe interestedparties ISO5794-1:1994,annexD 5 Sampling Takearepresentativesampleoftheproducttobetested,asdescribedinISO15528. 6 Determinationofsilic
38、acontent 6.1 Principle Atestportionisrepeatedlytreatedwithhydrochloricacidandevaporatedtodryness.Torenderthedehydrated silicicacidthusformedasinsolubleaspossible,itisthenheatedfor2hat(140 5)C.Anychloridespresentare removedbyextractingtheprecipitatewithhotdilutehydrochloricacid. Theprecipitateisignit
39、edat1000C,givingimpuresilicondioxide,whichistreatedwithsulfuricandhydrofluoric acid.Thesilicontetrafluorideformedisevaporatedoffandthesilicacontentiscalculatedfromtheresultinglossin mass. EN ISO 3262-18:2000 3 6.2 Reagents Useonlyreagentsofrecognizedanalyticalgradeandonlywaterofatleastgrade3purityas
40、definedinISO3696. 6.2.1Hydrochloricacid,concentrated,approximately32%(m/m), 1,16g/ml. 6.2.2Hydrochloricacid,diluted1 1. Add1partbyvolumeofconcentratedhydrochloricacid(6.2.1)to1partbyvolumeofwater. 6.2.3Sulfuricacid,diluted1 1. Add1partbyvolumeofconcentratedsulfuricacid,approximately96%(m/m), 1,84g/m
41、l,slowlyto1partby volumeofwater. 6.2.4Hydrofluoricacid,concentrated,approximately40%(m/m), 1,13g/ml. 6.3 Apparatus Useordinarylaboratoryapparatusandglassware,togetherwiththefollowing: 6.3.1Dish. 6.3.2Platinumcrucible. 6.3.3Waterbath,capableofbeingmaintainedat100C. 6.3.4Infraredevaporator. 6.3.5Muffl
42、efurnace,capableofbeingmaintainedat(1000 20)C. 6.3.6Dryingoven,capableofbeingmaintainedat(140 5)C. 6.3.7Filterpaper. Thefilterpaperusedforfiltrationofthesilicashallbeofsuchtextureastoretainthesmallestparticlesof precipitateandneverthelesspermitrapidfiltration. 2) 6.3.8Desiccator,containingmagnesiump
43、erchlorateasdesiccant. 6.4 Procedure 6.4.1 Numberofdeterminations Carryoutthedeterminationinduplicate. 6.4.2 Testportion Weigh,tothenearest0,2mg,approximately1g(m 0 )ofthesample(seeclause5)intoadish(6.3.1). 2)ForexampleWhatmanNo.40or41orSchleicherundSchllNo.589/2“Weiband“. EN ISO 3262-18:20004 6.4.3
44、 Determination Addslowly20mlofconcentratedhydrochloricacid(6.2.1)andevaporatetodrynessundertheinfraredevaporator (6.3.4).Addagain20mlofconcentratedhydrochloricacidandevaporatetodryness.Repeatthissteponcemore. Afterthethirdevaporation,placethedishinthedryingoven(6.3.6),maintainedat(140 5)C,andleavefo
45、r2h. Removethedishfromtheovenandallowtocool.Add50mlof1 1hydrochloricacid(6.2.2)totheresidueinthe dishandwarmitforapproximately20minonthewaterbath(6.3.3)at100C.Filterthroughasuitablefilterpaper (6.3.7)andwashtheresidueonthefilterwithhotwateruntilthewashingsareneutral. Pourthefiltrateandwashingsintoth
46、eoriginaldishandevaporatetodryness.Repeatthisevaporationstepanother twotimes,addingeachtime10mlofconcentratedhydrochloricacidtotheresidue.Afterthethirdevaporation,heat at(140 5)Cfor2hinthedryingoven. Add20mlof1 1hydrochloricacidtotheresidueinthedishandwarmitforapproximately10minonthewater bathat100C
47、.Filterthroughafreshfilterpaperandwashtheresidueonthefilterwithhotwateruntilthewashings areneutral. Ifitisfeltnecessary,checkthefiltrateforanysiliconwhichmayhavepassedthroughthefilter. Placethetwofilterpaperswiththewashedprecipitatesintheplatinumcrucible(6.3.2).Dry,charatlow temperature,igniteinthem
48、ufflefurnace(6.3.5)at(1000 20)Ctoconstantmass(thisshouldtakeapproximately 1h)andallowtocoolinthedesiccator(6.3.8).Weightheignitedprecipitatetothenearest0,2mg(m 1 ). Wettheignitedprecipitateintheplatinumcruciblewith2mlto3mlofwater,add1mlof1 1sulfuricacid(6.2.3) and15mlofhydrofluoricacid(6.2.4)andevaporatetoasyrup,takingcaretoavoidlossbyspitting.Allowtocool andwashthesidesdownwithsmall
