【英文标准名称】:Paints,varnishesandplastics-Determinationofnon-volatile-mattercontent
【原文标准名称】:涂料、清漆和塑料制品.非挥发物质含量的测定
【标准号】:ISO3251-2008
【标准状态】:现行
【国别】:国际
【发布日期】:2008-02-01
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/TC35
【标准类型】:()
【标准水平】:()
【中文主题词】:分析;粘合剂;化学分析和测试;涂层材料;覆层;定义;测定;含量测定;天然漆;物质含量;非挥发物质;非挥发物测定;涂料;塑料;一份;乳状树脂;树脂;树脂(天然);抽样方法;溶剂;测试;清漆;挥发性的
【英文主题词】:Analysis;Bindingagents;Chemicalanalysisandtesting;Coatingmaterials;Coatings;Definitions;Determination;Determinationofcontent;Instruments;Lacquers;Masscontent;Nonvolatile;Non-volatilematter;Non-volatilematterdetermination;Paints;Plastics;Portion;Resinmilk;Resins;Resins(natural);Samplingmethods;Solvents;Testing;Varnishes;Volatile
【摘要】:ThisInternationalStandardspecifiesamethodfordeterminingthenon-volatile-mattercontentbymassofpaints,varnishes,bindersforpaintsandvarnishes,polymerdispersionsandcondensationresinssuchasphenolicresins(resols,novolaksolutions,etc.).Themethodisalsoapplicabletoformulateddispersionscontainingfillers,pigmentsandotherauxiliaries(e.g.thickenersandfilm-formingagents).Forthemethodtobeusableforunplasticizedpolymerdispersionsandrubberlatices,thenon-volatileresidue(whichconsistsessentiallyofthepolymericmaterialandofsmallquantitiesofauxiliariessuchasemulsifiers,protectivecolloids,stabilizers,solventsaddedasfilm-formingagentsand—especiallyforrubberlatexconcentrate—preservingagents)hastobechemicallystableunderthetestconditions.Forplasticizedsamples,theresidue,bydefinition,normallyincludestheplasticizer.NOTE1Thenon-volatile-mattercontentofaproductisnotanabsolutequantitybutdependsuponthetemperatureandperiodofheatingusedforthedetermination.Consequently,whenusingthismethod,onlyrelativeandnottruevaluesfornon-volatile-mattercontentareobtainedowingtosolventretention,thermaldecompositionandevaporationoflowmolecularmassconstituents.Themethodisthereforeprimarilyintendedfortestingdifferentbatchesofthesametypeofproduct.NOTE2Thismethodissuitableforsyntheticrubberlaticesprovidedheatingforaspecificperiodoftimeisconsideredappropriate(ISO124specifiesheatinguntilthelossinmassofa2gtestportionfollowingsuccessiveperiodsofheatingislessthan0,5mg).NOTE3In-housemethodsfordeterminingnon-volatilematteroftenincludedryingwithinfraredormicrowaveradiation.Standardizationofsuchmethodsisnotpossible,sincetheyarenotgenerallyapplicable.Somepolymercompositionstendtodecomposeduringsuchtreatmentandthereforegiveincorrectresults.ISO3233andISO23811specifymethodsfordeterminingthevolumeofnon-volatilematterinpaints,varnishesandrelatedproducts.
【中国标准分类号】:G04
【国际标准分类号】:83_080_01;87_040;87_060_20
【页数】:12P.;A4
【正文语种】:英语