您的位置: 标准下载 » 协会标准 » ASTM 美国材料与试验协会 »
热门标准
下载排行

ASTM D4797-1988(2007) 含铬酸铅和二氧化酞的白色和黄色热塑性交通标志的化学和重量分析的标准试验方法

作者:标准资料网 时间:2024-05-29 08:31:53  浏览:9172   来源:标准资料网
下载地址: 点击此处下载
【英文标准名称】:StandardTestMethodsforChemicalandGravimetricAnalysisofWhiteandYellowThermoplasticTrafficMarkingContainingLeadChromateandTitaniumDioxide
【原文标准名称】:含铬酸铅和二氧化酞的白色和黄色热塑性交通标志的化学和重量分析的标准试验方法
【标准号】:ASTMD4797-1988(2007)
【标准状态】:现行
【国别】:
【发布日期】:1988
【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】:(TestMethod)
【标准水平】:()
【中文主题词】:试验;作道路标记;热塑性聚合物;粘结强度
【英文主题词】:glassspheres(intrafficpaint);leadchromate;titaniumdioxide;thermoplastictrafficmarkingmaterial
【摘要】:1.1Thesetestmethodscoverproceduresforthechemicalandgravimetricanalysisofwhiteandyellowthermoplastictrafficmarkingcontainingleadchromateandtitaniumdioxidepigment.1.2Theanalyticalproceduresappearinthefollowingorder:1.3ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Note1Testfor1.50glassspheresonly.Note2ThismodifiedanalysisofchromeyellowandchromeorangepigmentsmustbeusedbecausetheheatresistantchromeyellowsinthethermoplasticcannotbeanalyzedbyTestMethodsD126.
【中国标准分类号】:G31
【国际标准分类号】:
【页数】:4P.;A4
【正文语种】:


下载地址: 点击此处下载
返回跳至顶部
Product Code:SAE AIR992
Title:Design Guide for Aerospace Ground Air Conditioning
Issuing Committee:Ac-9 Aircraft Environmental Systems Committee
Scope:【英文标准名称】:StandardTestMethodforMeasuringConsistencyofCastableRefractoryUsingaFlowTable
【原文标准名称】:用流动稠度试验台测量可浇注耐火材料粘稠度的标准试验方法
【标准号】:ASTMC1445-2007
【标准状态】:现行
【国别】:
【发布日期】:2007
【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】:C08.09
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:混凝土;粘稠度;流动;流动台;测量;混合;耐火的;耐火材料;表;桌子;试验方法
【英文主题词】:castable;concrete;consistency;flow;flow-table;mixing;refractory
【摘要】:Theamountofwaterusedinacastablemixforpreparingtestspecimenshasasignificantinfluenceonsubsequenttestresults.Thistestmethodisusedprimarilytodetermineandreproducetheconsistencyrequiredfortheoptimumcastingofrefractorycastablesinthepreparationoftestspecimensandtoexpressthatconsistencyquantitatively.Thecorrectwatercontentisoneofthemajorfactorsthatmustbecontrolledtoobtainuniformtestspecimens.Excesswatercanreducestrength,increasevolumeshrinkage,andpromotesegregationofthecastableingredients.Insufficientwatercanproducex201C;honeycombsx201D;(airvoids)inthecastablebecauseofpoorconsolidationduringplacementandpreventcompletehydrationofcement.Theflowtable(seesketchesinSpecificationC230/C230M)hasbeenfoundtobeanexcellenttoolformeasuringtheconsistencyofacastableandshouldbeusedincaseswhereanumericalresultisrequired.Sincecastablesdiffersomewhatintheirx201C;bodyx201D;orplasticity,ithasbeenfoundthatagoodcastingrange,expressednumerically,mightvaryfromcastabletocastable.Whileonematerialmaycastwellbetween40and60%flow,anothermaterialmayneedtobeinthe60to80%flowrangetoproperlyflow.Becauseofthis,ithasbeenfoundthatnoarbitraryoptimumrangecanbestatedforallcastables.Theflowtablethenbecomesatoolformeasuringtheflowandnotdeterminingit.Itcanallowtheoperatortofollowthemanufacturerrsquo;recommendationsortoreproducetheconsistencyofaparticularcastablebetweenlaboratories.Totaltimeofwetmixingmustbecloselycontrolledtoobtainreproducibleresults.Thistestmethodisnotintendedtobeusedtodeterminetheproperwatercontentforgunningapplications,althoughitmayprovideinformationofvalueforinterpretationbyaskilledoperator.1.1Thistestmethodcoverstheprocedurefordeterminingtheconsistencyofcastablerefractorymixesbytheflowtablemethod.1.2Thistestmethodappliestoregularweightcastablerefractories,insulatingcastablerefractories,andcastablerefractoriesthatrequireheavyvibrationforforming,whicharedescribedinClassificationC401.Theyalsoapplytosuchcastablescontainingmetalfibers.1.3Thevaluesstatedininch-pound-unitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Q40
【国际标准分类号】:
【页数】:4P.;A4
【正文语种】: