DIN 65533-2011 航空航天.螺栓,螺钉和螺母.材料的分配及表面处理,推荐性选择.德文和英文文本
时间:2024-05-10 08:44:44 来源: 标准资料网 作者：标准资料网 阅读：8132
【英文标准名称】:Aerospace-Bolts,screwsandnuts-Allocationofmaterialsandsurfacetreatments,recommendedselection;TextinGermanandEnglish
【原文标准名称】:航空航天.螺栓,螺钉和螺母.材料的分配及表面处理,推荐性选择.德文和英文文本
【标准号】:DIN65533-2011
【标准状态】:现行
【国别】:德国
【发布日期】:2011-06
【实施或试行日期】:
【发布单位】:德国标准化学会(DE-DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:航空航天运输;航空运输;分类;合作;紧固件;材料;螺母;螺钉(螺栓);选择;航天运输;强度等级;表面处理;表面
【英文主题词】:Aerospacetransport;Airtransport;Classification;Coordination;Fasteners;Materials;Nuts;Screws(bolts);Selection;Spacetransport;Strengthclass;Surfacetreatment;Surfaces
【摘要】:Thisstandardshallbeusedwhendefiningthedesigndataofbolts/screwsandnutsintendedforaerospaceequipmenttoguaranteetheirappropriateallocationintermsofmaterialsandsurfacetreatments.Effectsofelectroplatingemanatingfromthebearingsurfacesofthecomponentshavenotbeentakenintoconsideration.
【中国标准分类号】:V20
【国际标准分类号】:49_030_20;49_030_30
【页数】:9P.;A4
【正文语种】:
【英文标准名称】:Fatandoilderivatives.Fattyacidmethylesters(FAME).Determinationoffreeandtotalglycerolandmono-,di-,triglyceridecontents
【原文标准名称】:油脂衍生物.脂肪酸甲酯(FAME).游离的和总的甘油,甘油一酸酯,甘油二酸酯和甘油三酸酯含量的测定
【标准号】:BSEN14105-2011
【标准状态】:现行
【国别】:英国
【发布日期】:2011-05-31
【实施或试行日期】:2011-05-31
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:Analysis;Animalfats;Animaloils;Chemicalanalysisandtesting;Content;Derivativeofoil;Determination;Determinationofcontent;FAME;Fats;Fattyacidmethylesters;Fattyacids;Foodproducts;Glycerine;Glycerol;Liquid;Methylesters;Oils;Referencemethods;Testing;Triglyceridanalysis;Vegetablefats;Vegetableoils
【摘要】:ThepurposeofthisEuropeanStandardistodeterminethefreeglycerolandresidualmono-,di-andtriglyceridecontentsinfattyacidmethylesters(FAME)intendedforadditiontomineraloils.Thetotalglycerolcontentisthencalculatedfromtheobtainedresults.Undertheconditionsdescribed,thequantificationlimitsare0,001%(m/m)forfreeglycerol,0,10%(m/m)forallglycerides(mono-,di-andtri-).ThismethodissuitableforFAMEpreparedfromrapeseed,sunflower,soybean,palm,animaloilsandfatsandmixtureofthem.ItisnotsuitableforFAMEproducedfromorcontainingcoconutandpalmkerneloilsderivativesbecauseofoverlappingofdifferentglyceridepeaks.NOTEForthepurposesofthisEuropeanStandard,theterm“%(m/m)”isusedtorepresentrespectivelythemassfraction.WARNING—Theuseofthismethodmayinvolvehazardousequipment,materialsandoperations.Thismethoddoesnotpurporttoaddresstoallofthesafetyproblemsassociatedwithitsuse,butitistheresponsibilityoftheusertosearchandestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:X14
【国际标准分类号】:67_200_10
【页数】:26P.;A4
【正文语种】:英语
【英文标准名称】:StandardPracticeforMeasuringFluidizationSegregationTendenciesofPowders
【原文标准名称】:测量粉末的液体化分离趋势的标准实施规程
【标准号】:ASTMD6941-2005e1
【标准状态】:现行
【国别】:
【发布日期】:2005
【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】:D18.24
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:分层;流态化;测量;粉末
【英文主题词】:fluidization;powder;segregation
【摘要】:Fluidizationsegregationcancauseverticalsegregationwithinbinsusedtoholdandtransportpowders.Thiscanaffectfinalproductqualityinindustrialapplications.Bymeasuringapowderrsquo;segregationtendency,onecancompareresultstootherpowderswithknownhistory,ordetermineifthegivenpowdermayhaveatendencytosegregateinagivenprocess.Finepowdersgenerallyhavealowerpermeabilitythancoarsebulksolidsandthereforetendtoretainairlonger.Thus,whenabinisbeingfilledwithafluidizablepowder,thecoarserparticlessettleoraredrivenintothebedwhilethefinerparticlesremainfluidizednearthesurface.Fluidization,whichservesasadrivingforceforthismechanismofsegregation,islikelytooccurwhenfinepowdersarepneumaticallyconveyedintoabin,thebinisfilledordischargedathighrates,orifsufficientairflowcountertotheflowofpowderispresentwithinthebin.Note18212;Thequalityoftheresultproducedbythispracticeisdependentonthecompetenceofthepersonnelperformingit,andthesuitabilityoftheequipmentandfacilitiesused.AgenciesthatmeetthecriteriaofPracticeD3740aregenerallyconsideredcapableofcompetentandobjectivetesting/sampling/inspection/etc.UsersofthispracticearecautionedthatcompliancewithPracticeD3740doesnotinitselfassurereliableresults.Reliableresultsdependonmanyfactors;PracticeD3740providesameansofevaluatingsomeofthosefactors.PracticeD3740wasdevelopedforagenciesengagedinthetestingand/orinspectionofsoilandrock.Assuchitisnottotallyapplicabletoagenciesperformingthispractice.However,usersofthispracticeshouldrecognizethattheframeworkofPracticeD3740isappropriateforevaluatingthequalityofanagencyperformingthispractice.Currentlythereisnoknownqualifyingnationalauthoritythatinspectsagenciesthatperformthispractice.1.1Thispracticecoversanapparatusandprocedureforsimulatingthesegregationtendenciesofpowdersbymeansofthefluidizationmechanism.1.2Powdersmustbecapableofbeingfluidizedinordertobetestedbythispractice.1.3Temperature-andhumidity-sensitivepowdersmayneedtobetestedatdifferenttemperaturesandmoisturecontents,aswouldhappeninanindustrialenvironment.Further,thegassupply(type,temperature,andhumidity)shouldalsomatchtheindustrialconditions.1.4Thisstandardisnotapplicabletoallbulksolidsandsegregationmechanisms:whilefluidizationisacommonsegregationmechanismexperiencedbymanyfinepowders,othersegregationmechanismsnotevaluatedbythisstandardmightinducesegregationinpractice.1.5Theextenttowhichsegregationwilloccurinanindustrialsituationisnotonlyafunctionofthepowderanditstendencytosegregate,butalsothehandlingequipment(forexample,bindesign),process(forexample,transferrates),andenvironment.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:A42
【国际标准分类号】:19_120
【页数】:4P.;A4
【正文语种】: