BS EN 3757-2009 航空航天系列.锚定、自锁定式、悬浮式、自对准、双凸耳、MoS2润滑耐高温钢螺母.分类:900MPa(环境温度)/315°C

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【英文标准名称】:Aerospaceseries-Nuts,anchor,self-locking,floating,self-aligning,twolugs,inheatresistingsteel,MoS2lubricated-Classification:900MPa(atambienttemperature)/315°C
【原文标准名称】:航空航天系列.锚定、自锁定式、悬浮式、自对准、双凸耳、MoS2润滑耐高温钢螺母.分类:900MPa(环境温度)/315°C
【标准号】:BSEN3757-2009
【标准状态】:现行
【国别】:英国
【发布日期】:2010-06-30
【实施或试行日期】:2010-06-30
【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】:航空航天运输;航空运输;沉头孔钻;设计;尺寸规格;紧固件;法兰;高温;防松螺母;作标记;材料;螺母;旋开窗;托板螺母;自锁紧;航天运输;钢;表面处理;螺纹形状;螺纹
【英文主题词】:Aerospacetransport;Airtransport;Counterbores;Design;Dimensions;Fasteners;Flanges;Hightemperature;Locknuts;Marking;Materials;Nuts;Pivoted;Platenuts;Self-locking;Spacetransport;Steels;Surfacetreatment;Threadforms;Threads
【摘要】:ThisEuropeanStandardspecifiesthecharacteristicsofself-locking,floating,self-aligning,twolugsanchornuts,inheatresistingsteel,MoS2-lubricated.Classification:900MPa/315°C.
【中国标准分类号】:V20
【国际标准分类号】:49_030_30
【页数】:10P.;A4
【正文语种】:英语


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【英文标准名称】:StandardTestMethodforQuantificationofaPseudomonasaeruginosaBiofilmGrownUsingaDripFlowBiofilmReactorwithLowShearandContinuousFlow
【原文标准名称】:用低剪切和连续流的滴灌流生物膜反应器量化铜绿假单胞菌(Pseudomonasaeruginosa)生物膜生长的标准试验方法
【标准号】:ASTME2647-2008
【标准状态】:现行
【国别】:美国
【发布日期】:2008
【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】:E35.15
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:biofilm;coupon;growthreactor;Pseudomonasaeruginosa;reactor;sampling;shear
【摘要】:Vegetativebiofilmbacteriaarephenotypicallydifferentfromsuspendedcellsofthesamegenotype.Biofilmgrowthreactorsareengineeredtoproducebiofilmswithspecificcharacteristics.Alteringeithertheengineeredsystemoroperatingconditionswillmodifythosecharacteristics.Thepurposeofthistestmethodistodirectauserinhowtogrow,sampleandanalyzeaPseudomonasaeruginosabiofilmunderlowfluidshearandclosetotheair/liquidinterfaceusingthedripflowreactor.ThePseudomonasaeruginosabiofilmthatgrowshasasmoothappearanceandislooselyattached.Microscopically,thebiofilmissheet-likewithfewarchitecturaldetails.Thislaboratorybiofilmcouldrepresentthosefoundonproducesprayers,onfoodprocessingconveyorbelts,oncatheters,inlungswithcysticfibrosisandoralbiofilms,forexample.Thebiofilmgeneratedinthedripflowreactorisalsosuitableforefficacytesting.Afterthe54hgrowthphaseiscomplete,theusermayaddthetreatmentinsituorharvestthecouponsandtreatthemindividually.ResearchhasshownthatP.aeruginosabiofilmsgrowninthedripflowreactorwerelessresistanttodisinfectionthanbiofilmsgrownunderhighshearconditions.1.1ThistestmethodspecifiestheoperationalparametersrequiredtogrowarepeatablePseudomonasaeruginosabiofilmclosetotheair/liquidinterfaceinareactorwithacontinuousflowofnutrientsunderlowfluidshearconditions.Theresultingbiofilmisrepresentativeofgeneralizedsituationswherebiofilmexistsattheair/liquidinterfaceunderlowfluidshearratherthanrepresentativeofoneparticularenvironment.1.2Thistestmethodusesthedripflowbiofilmreactor.Thedripflowreactor(DFR)isaplugflowreactorwithlaminarflowresultinginlowfluidshear.Thereactorisversatileandmayalsobeusedforgrowingand/orcharacterizingdifferentspeciesofbiofilms.1.3Thistestmethoddescribeshowtosampleandanalyzebiofilmforviablecells.Biofilmpopulationdensityisrecordedaslogcolonyformingunitspersurfacearea.1.4Basicmicrobiologytrainingisrequiredtoperformthistestmethod.1.5ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:J88
【国际标准分类号】:13_060_30;91_010_20
【页数】:5P.;A4
【正文语种】:英语


【英文标准名称】:Shuntpowercapacitorsoftheself-healingtypeforA.C.Systemshavingaratedvoltageuptoandincluding1kv.Part2:ageingtestself-heatingtestanddestructiontest.
【原文标准名称】:额定电压最高可达(含)1000V的交流系统自恢复型分流电容器.第2部分:老化自热试验和破坏性试验
【标准号】:NFC54-109-1996
【标准状态】:现行
【国别】:法国
【发布日期】:1996-07-01
【实施或试行日期】:1996-07-05
【发布单位】:法国标准化协会(AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:交流电流;测量;电容器组;并联电容器;交流电压;交流电网络;安全;精密度;电力电容器;老化试验;质量要求;破坏试验;;;电气安全;测量精度;电子设备及元件;安全要求;试验;验证;质量;电容器;电气工程
【英文主题词】:
【摘要】:
【中国标准分类号】:K42
【国际标准分类号】:31_060_70
【页数】:14P;A4
【正文语种】:其他