ASTM D2743-1968(2004) 光谱和气相色谱法测定路标漆固体漆料均匀性的标准实施规程

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【英文标准名称】:StandardPracticesforUniformityofTrafficPaintVehicleSolidsbySpectroscopyandGasChromatography
【原文标准名称】:光谱和气相色谱法测定路标漆固体漆料均匀性的标准实施规程
【标准号】:ASTMD2743-1968(2004)
【标准状态】:现行
【国别】:
【发布日期】:1968
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:D01.44
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:覆层;涂漆;涂料;工艺;光谱学;同一;作道路标记
【英文主题词】:gaschromatography;spectroscopy;trafficpaint;uniformityofpaintvehicle
【摘要】:1.1Thesepracticesprovidegeneralinformationontheinstrumentaltechniquesavailablefordetectingadulterationornonuniformityofthechemicalnatureofthevehiclesolidsinpurchasedlotsoftrafficpaintsbymeansoftheindividualorcombineduseofinfraredandultravioletspectroscopyandgaschromatography.Theproceduresgivenareapplicablewhentrafficpaintisselectedandpurchasedonthebasisofpre-qualificationlaboratoryorroadperformancetests,orboth,andareferencesampleoftheoriginalpaintsoevaluatedandselectedisretainedandcomparedwithtestsamplesrepresentativeofsubsequentpurchasedanddeliveredlotsofsuchpaintandwhicharerequiredtobethesameastheoriginalreferencesample.1.2Althoughnotspecificallyprovidedforinthesepractices,themethodsgivenmayalsobeapplied,withappropriatemodification,toevaluatingtheacceptabilityoftrafficpaintsthathavebeenpurchasedonthebasisofcompositionspecifications.Insuchcases,applicationislimitedtothevehiclesolidsasbefore,aswellastheavailabilityofasuitablestandardorrangeofstandardsrepresentativeofthevehiclesolidsthatareacceptableandwithwhichsamplesofsubsequentdeliveredlotswillbecompared.1.3Thetechniquesprovidedarewhollyadequatefordetectinggrossadulterationofthevehiclesolidswherecompletelydifferentdryingoils,resins,orpolymers,orcombinationsofthesehavebeensubstitutedforthoseoriginallycontainedinthereferencesample.Incasesoflesseradulterationormodification,thesemethodshavebeenfoundadequatefordetectingvehiclesolids,adulterations,ormodificationsaslowas5weight%ofthevehiclesolids.1.4Thesetechniqueshavebeendevelopedonthebasisofcooperativeworkwithalkyd,chlorinatedrubber-alkyd,andpoly(vinyltoluene)typepaintsinvolvingthedetectionofnonuniformitywhensuchextraneousmaterialsasrosin,fishoil,hydrocarbonresin,andchlorinatedparaffinhavebeenadded.Theproceduresgivenmaybe,butarenotnecessarilycompletelyapplicabletoallothertypesofvehiclesolidsorextraneousadditions,orboth.1.5Themethodsprovidedappearinthefollowingorder:SectionMethodA-InfraredSpectralAnalysisofTotalVehicleSolidsMethodB-InfraredSpectralAnalysisofUnsaponifiableMatterfromVehicleSolidsMethodC-GasChromatographicAnalysisofOilsandOilAcidsSeparatedfromVehicleSolidsMethodD-UltravioletSpectralAnalysisofTotalVehicleSolids19,20,and21