SAE AIR6443 Impact of Copper contamination on the Thermal Stability of Jet Fuels
时间:2024-05-19 07:27:49 来源: 标准资料网 作者：标准资料网 阅读：8363
Product Code:SAE AIR6443
Title:Impact of Copper contamination on the Thermal Stability of Jet Fuels
Issuing Committee:Ae-5b Engine Related Components Airframe-Mounted Pumps
Scope: This AIR discusses sources and nature of copper contamination in jet fuels and the detrimental impact on the thermal stability of the jet fuels
Rationale: This AIR discusses sources and nature of copper contamination in jet fuels and the detrimental impact on the thermal stability of the jet fuels
【英文标准名称】:StandardPracticesforPreparationofMagnesiumAlloySurfacesforPainting
【原文标准名称】:涂漆用镁合金表面预处理的标准实施规范
【标准号】:ASTMD1732-2003(2008)
【标准状态】:现行
【国别】:美国
【发布日期】:2003
【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】:B08.07
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:anodictreatments;magnesium;painting;surfacepreparation;Magnesiumalloys;Specimenpreparation(fortesting)--paints/relatedcoatings
【摘要】:1.1Thesepracticescovertwoclassesoftreatmentforpreparationofmagnesiumalloysurfacesforpainting,asfollows:ClassIx2014;ChemicalTreatments.ClassIIx2014;AnodicTreatments.Ingeneral,thelattertreatmentsarethemoreprotectiveofthetwoclasses.Mechanical(abrasive)treatments,solventcleaning,alkalinesolutiontreatments,andacidpicklesnotresultinginprotectiveconversioncoatingsaresuitablepreliminarytreatmentsonlyformetaltobeexposedundermildlycorrosive(indoor)exposures.Whenahighdegreeofcorrosionprotectionandpaintadhesionaredesired,asinmanyoutdoorenvironments,surfacepreparationbyoneoftheaboveconversion-coatclassesisnecessary.Thehexavalentchromiumbasedmethodsgivenarenotrecommendedashexavalentchromiumisaknowncarcinogen.Note18212;TestingofCoatingsx2014;Qualitycontroltestsofcoatingsarefrequentlydesirable,andthesegenerallyconsistofexposures,withorwithoutpaint,tosaltspray,humidity,ornaturalenvironments,withsuitableproceduresforassessingthedegreeofbreakdownsufferedafterfixedtimeintervals.Itisrecommendedthatqualitycontroltestsofcoatingsshallbemadeasfaraspossiblewithhigh-puritymaterial(forexampleAZ31Aalloy),theinherentcorrosionrateofwhichisrelativelyconsistentfrombatchtobatch)andthatprecautionsshallbetakentoremovesurfacecontaminationbeforecoatingsareapplied.Suchcontaminationshallberemovedbyacidpicklingtoadepthofatleast0.001in.(25x03BC;m)perside.1.2Thisstandardmayinvolvehazardousmaterials,operations,andequipment.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.(SeeNote11.)
【中国标准分类号】:A29
【国际标准分类号】:
【页数】:8P.;A4
【正文语种】:英语
【英文标准名称】:Materialsforinterconnectionstructures-Sectionalspecificationsetforunreinforcedbasematerials,cladandunclad(intendedforflexibleprintedboards)-Adhesivecoatedflexiblepolyimidefilm-Adhesivecoatedflexiblepolyimidefilm
【原文标准名称】:互联结构材料.包被和非包被的非增强基材分规范集(用于挠性印制板).粘胶涂覆挠性聚酰亚胺膜
【标准号】:BSEN61249-3-4-1999
【标准状态】:现行
【国别】:英国
【发布日期】:1999-06-15
【实施或试行日期】:1999-06-15
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:印制电路板;胶粘剂;电导性;印制电路;互联结构;电气工程;导电材料;基底材料;聚酰亚胺;粘着性的;柔性材料;导电体
【英文主题词】:Adhesive;Adhesives;Basematerials;Conductivematerials;Conductivity;Electricconductors;Electricalengineering;Flexiblematerials;Interconnectionstructures;Polyimides;Printedcircuits;Printed-circuitboards
【摘要】:ThispartofIEC61249givesrequirementsforflexiblepolyimidefilmscoatedononesideorbothsideswithacrylicorepoxidetypeadhesiveforuseinthefabricationofflexibleprintedwiring.Filmscoatedononlyonesideareusedasacoverlayorcovercoatinthefabricationofflexibleprintedwiring.Thiscoverlayorcovercoatisalsousedtoprovidelocalsupporttoareassubjectedtomechanicalorenvironmentalstress.Filmscoatedonbothsidesareusedasbondingfilmsinthefabricationofprintedboards.
【中国标准分类号】:L30
【国际标准分类号】:31_180
【页数】:18P.;A4
【正文语种】:英语