EN 3325-2007 航空航天系列.FE-PM1708(FV535)型耐热钢长螺纹细杆T形头螺栓.分类:1000MPa/550℃.未涂覆的螺栓
时间:2024-05-10 02:56:06 来源: 标准资料网 作者：标准资料网 阅读：8310
【英文标准名称】:Aerospaceseries-Bolts,T-head,relievedshank,longthread,inheatresistingsteelFE-PM1708(FV535)-Classification:1000MPa/550°C-Unplated;GermanandEnglishversionEN3325:2007
【原文标准名称】:航空航天系列.FE-PM1708(FV535)型耐热钢长螺纹细杆T形头螺栓.分类:1000MPa/550℃.未涂覆的螺栓
【标准号】:EN3325-2007
【标准状态】:现行
【国别】:
【发布日期】:2008-05
【实施或试行日期】:
【发布单位】:欧洲标准学会(EN)
【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;名称与符号;尺寸;带帽螺钉;六角头螺钉;长形;作标记;多语种的;特性;细杆;螺钉;航天运输;规范(验收);T形头螺栓;螺纹
【英文主题词】:Aerospacetransport;Airtransport;Designations;Dimensions;Headscrews;Hexagonheadscrews;Long;Marking;Multilingual;Properties;Relievedshanks;Screws(bolts);Spacetransport;Specification(approval);T-headbolts;Threads
【摘要】:
【中国标准分类号】:V20
【国际标准分类号】:49_030_20
【页数】:20P.;A4
【正文语种】:英语
【英文标准名称】:StandardSpecificationforSteelStrand,Indented,Seven-WireStress-RelievedforPrestressedConcrete
【原文标准名称】:IEEEStd.2600-2800作业环境B中的硬拷贝设备的标准保护轮廓
【标准号】:ASTMA886/A886M-2010
【标准状态】:现行
【国别】:美国
【发布日期】:2010
【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】:A01.05
【标准类型】:(Specification)
【标准水平】:()
【中文主题词】:
【英文主题词】:indentations;prestressedconcrete;seven-wirestrand(tendon);steelwire;Indentation;Prestressedconcrete;Concretereinforcement--specifications;Seven-wirestrand(tendon);Steelwire(prestressedconcrete);Steelwirestrand--specifications;Uncoat
【摘要】:1.1Thisspecificationcoversseven-wireuncoated,indented,stress-relievedsteelstrandforuseinpretensionedprestressedconcreteconstruction.Grade250IandGrade270Ihaveminimumultimatestrengthsof250ksi[1725MPa]and270ksi[1860MPa],respectively,basedonthenominalareaofthestrand.1.2SupplementIdescribeslow-relaxationstrandandrelaxationtestingforthatproduct.Low-relaxationstrandshallbefurnishedwhenspecificallyorderedandfurnishedinplaceofstress-relievedstrandifmutuallyagreedtobythepurchaserandsupplier.1.3Thisspecificationisapplicableforordersineitherinch-poundunits(asSpecificationA886)orinSIunits(asSpecificationA886M).1.4Thevaluesstatedineitherinch-poundunitsorSIunitsaretoberegardedseparatelyasstandards.Withinthetext,theinch-poundunitsareshowninbrackets.Thevaluesstatedineachsystemarenotexactequivalents;therefore,eachsystemmustbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnonconformancewiththespecification.
【中国标准分类号】:L64
【国际标准分类号】:77_140_15
【页数】:5P.;A4
【正文语种】:英语
【英文标准名称】:StandardPracticeforPreparationofPressedPowderWhiteReflectanceFactorTransferStandardsforHemisphericalandBi-DirectionalGeometries
【原文标准名称】:半球状和二维几何形状压制粉末白色反射系数转换标准的准备用标准实施规范
【标准号】:ASTME259-2006
【标准状态】:现行
【国别】:
【发布日期】:2006
【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】:E12.02
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:验收检验;覆层;材料;光学;涂料;纸;准备;工艺;参考材料;反射;试验
【英文主题词】:bi-directionalopticalmeasuringsystem;hemisphericalopticalmeasuringsystem;integratingsphere;materialstandards;reflectanceandreflectivity;transferstandards
【摘要】:Allcommercialreflectometersmeasurerelativereflectance.Theinstrumentreadingisthereflectancefactor,theratioofthelightreflectedbyareferencespecimentothatreflectedbyatestspecimen.Thatratioisdependentonspecificinstrumentparameters.Nationalstandardizinglaboratoriesandsomeresearchlaboratoriesmeasurereflectanceoninstrumentscalibratedfrombasicprinciples,therebyestablishingascaleofabsolutereflectanceasdescribedinCIEPublicationNo.44(2).Thesemeasurementsaresufficientlydifficultthattheyareusuallylefttolaboratoriesthatspecializeinthem.Astandardthathasbeenmeasuredonanabsolutescalecouldbeusedtotransferthatscaletoareflectometer.Whilesuchproceduresexist,theconstraintsplacedonthemechanicalpropertiesrestrictthesuitabilityofsomeopticalproperties,especiallythosepropertiesrelatedtothegeometricdistributionofthereflectedlight.Thus,reflectancefactorstandardswhicharesufficientlyruggedandabletobecleaned,departconsiderablyfromtheperfectdiffuserinthegeometricdistributionofreflectedradiance.Thegeometricdistributionofreflectedradiancefromapressedpowderplaqueissufficientlydiffusetoprovideadependablecalibrationofadirectional-hemisphericalreflectometer.Althoughpressedpowderstandardsaresubjecttocontaminationandbreakage,thedirectional-hemisphericalreflectancefactorofpressedpowderstandardscanbesufficientlyreproduciblefromspecimentospecimenmadefromagivenlotofpowder,soastoallowonetoassignabsolutereflectancefactorvaluestoallthepowderinalot.Thispracticedescribeshowtopreparewhitereflectancefactorstandardsfromapowderinamannerthatallowsastandardizinglaboratorytoassigntheabsolutescaleofreflectancetotheplaque.1.1Thispracticecoversproceduresforpreparingpressedpowdertransferstandards.Thesestandardscanbeusedinthenear-ultraviolet,visibleandnear-infraredregionoftheelectromagneticspectrum.ProceduresforcalibratingthereflectancefactorofmaterialsonanabsolutebasisarecontainedinCIEPublicationNo.44().Pressedpowderstandardsareusedastransferstandardsforsuchcalibrationsbecausetheyhaveahighreflectancefactorthatisnearlyconstantwithwavelength,andbecausethegeometricdistributionofreflectedfluxresemblesthatfromtheperfectreflectingdiffuser.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesinparenthesesareforinformationonly.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:A26
【国际标准分类号】:17_180_20
【页数】:5P.;A4
【正文语种】: