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【英文标准名称】:StandardTestMethodforContaminationOutgassingCharacteristicsofSpacecraftMaterials
【原文标准名称】:航天器材料污染脱气特性的标准试验方法
【标准号】:ASTME1559-2009
【标准状态】:现行
【国别】:美国
【发布日期】:2009
【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】:E21.05
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:contaminationcontrol;materials;moleculardeposition;outgassing;spacecraft;Adhesives(aerospace);Coatings(aerospaceapplications);Collectedvolatilecondensablematerials(CVCM);Contamination--aerospacematerials/applications;Differentialsca
【摘要】:1.1Thistestmethodcoversatechniqueforgeneratingdatatocharacterizethekineticsofthereleaseofoutgassingproductsfrommaterials.Thistechniquewilldetermineboththetotalmassfluxevolvedbyamaterialwhenexposedtoavacuumenvironmentandthedepositionofthisfluxonsurfacesheldatvariousspecifiedtemperatures.1.2Thistestmethoddescribesthetestapparatusandrelatedoperatingproceduresforevaluatingthetotalmassfluxthatisevolvedfromamaterialbeingsubjectedtotemperaturesthatarebetween298and398K.Pressuresexternaltothesampleeffusioncellarelessthan7x00D7;10x2212;3Pa(5x00D7;10x2212;5torr).Depositionratesaremeasuredduringmaterialoutgassingtests.Atestprocedureforcollectingdataandatestmethodforprocessingandpresentingthecollecteddataareincluded.1.3Thistestmethodcanbeusedtoproducethedatanecessarytosupportmathematicalmodelsusedforthepredictionofmolecularcontaminantgeneration,migration,anddeposition.1.4Alltypesoforganic,polymeric,andinorganicmaterialscanbetested.Theseincludepolymerpottingcompounds,foams,elastomers,films,tapes,insulations,shrinktubing,adhesives,coatings,fabrics,tiecords,andlubricants.1.5Therearetwotestmethodsinthisstandard.TestMethodAusesstandardizedspecimenandcollectortemperatures.TestMethodBallowstheflexibilityofuser-specifiedspecimenandcollectortemperatures,materialandtestgeometry,anduser-specifiedQCMs.1.6ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.7Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:V04
【国际标准分类号】:49_025_01
【页数】:16P.;A4
【正文语种】:英语