BS EN 3282-1994 机体轴承.钢制的镀镉刚性单列球轴承.8号和9号直径系列.尺寸规格和负荷

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【英文标准名称】:Bearings,airframerolling-Rigidsinglerowballbearingsinsteel,cadmiumplated-Diameterseries8and9.Dimensionsandloads
【原文标准名称】:机体轴承.钢制的镀镉刚性单列球轴承.8号和9号直径系列.尺寸规格和负荷
【标准号】:BSEN3282-1994
【标准状态】:现行
【国别】:英国
【发布日期】:1994-08-15
【实施或试行日期】:1994-08-15
【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;飞机机架轴承;飞机机架;滚珠轴承;轴承;镉板;镀镉;间隙;尺寸规格;有槽球轴承;内间隙;负荷;材料;特性;安全工作荷载;单排;单列轴承;航天运输;规范(验收);静荷载;钢;符号;扭矩
【英文主题词】:Aerospacetransport;Airtransport;Airframebearings;Airframes;Ballbearings;Bearings;Cadmiumplated;Cadmiumplating;Clearances;Dimensions;Groovedballbearings;Internalclearances;Loading;Materials;Properties;Safeworkingload;Singlerow;Single-rowbearings;Spacetransport;Specification(approval);Staticloading;Steels;Symbols;Torque
【摘要】:Thisstandardspecifiesthecharacteristicsofrigidsinglerowballbearingsinsteel,cadmiumplated,ofdiameterseries8and9designedtowithstandonlyslowrotationsandoscillationsunderload.Theyareintendedforusebetweenfixedandmovingpartsoftheaircraftstructureandtheircontrolmechanisms.Theairframerollingbearingsdefinedinthisstandardareusedfrom-54℃to+150℃.However,beinglubricatedwiththefollowinggreases:-veryhighpressuregrease,estertype(codeA),operationalrange-73℃to+121℃or-veryhighpressuregrease,synthetichydrocarbons,generalpurpose(codeB),operationalrange-54℃to+177℃(seeEN3280),theirfieldofapplicationwhenlubricatedwithcodeAgreaseislimitedto+121℃.note:1)Fornewdesign,usepreferablybearingsincorrosionresistingsteel,seeEN32832)SeeISO15
【中国标准分类号】:V22
【国际标准分类号】:49_035
【页数】:12P.;A4
【正文语种】:英语


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【英文标准名称】:StandardTestMethodforDeterminationofHydrogenPeroxideandCombinedOrganicPeroxidesinAtmosphericWaterSamplesbyPeroxidaseEnzymeFluorescenceMethod
【原文标准名称】:用过氧化物酶荧光法测定大气水样中过氧化氢和合成有机过氧化物的标准试验方法
【标准号】:ASTMD6363-1998(2009)e1
【标准状态】:现行
【国别】:美国
【发布日期】:1998
【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】:D22.03
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:atmosphericwater;derivatization;hydrogenperoxide;hydroperoxide;peroxide;sampling;Atmosphericwateranalysis;Fluorescence--atmosphericanalysis;Horseradishperoxidasederivatization;Hydrogenperoxide(H2O2);Organicperoxi
【摘要】:Hydrogenperoxide(formedphotochemicallyintheatmosphere)isaprimaryoxidizerofdissolvedsulfurdioxideinatmosphericwater.DetectionofH2O2inatmosphericwaterisusefulforinferringgas-phaseH2O2concentrationsandforassessingtherelativeimportanceofvariousacidifyingmechanismsunderspecificatmosphericconditions.Hydroperoxidesinsamplestobeanalyzedareunstableinwaterandcandecayrapidlyduetobacterialactionorchemicalreactionwithotherconstituents.Thetestmethodincludesproceduresforsamplederivatizationandmethodsforestimatingandcorrectingforhydroperoxidedecay.1.1Thistestmethodcoversthedeterminationofhydroperoxides,whichincludehydrogenperoxide(H2O2)andcombinedorganicperoxides,insamplesofatmosphericwaterbythemethodofhorseradishperoxidasederivatizationandfluorescenceanalysisofthederiveddimer.,1.2Therangeofapplicablehydrogenperoxideconcentrationswasdeterminedtobe0.6-176.0x00D7;10x2212;6Mfromindependentlaboratorytestsofthetestmethod.1.3Theprimaryuseofthetestmethodisforhydrogenperoxide,butitmayalsobeusedtoquantitateorganichydroperoxides.Determinationsoforganichydroperoxideconcentrationlevelsupto30x00D7;10x2212;6Mmaybeadequatelyobtainedbycalibrationwithhydrogenperoxide.,Whileorganichydroperoxideshavenotbeendetectedatsignificantconcentrationlevelsinrainorcloudwater,theirpresencemaybetestedbyoperationofthetestmethodwiththeadditionofcatalasefordestructionofH2O2.1.4Becauseoftheinstabilityofhydroperoxidesinatmosphericwatersamples,propersamplecollection,at-collectionderivatization,andstringentqualitycontrolareessentialaspectsoftheanalyticalprocess.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Z16
【国际标准分类号】:13_060_50
【页数】:6P.;A4
【正文语种】:英语


Product Code:SAE AMS3243
Title:Chloroprene (CR), Rubber Flame Resistant, 55 - 65
Issuing Committee:Ams Ce Elastomers Committee
Scope:This specification covers a chloroprene (CR) rubber in the form of sheet, strip, tubing, extrusions, and molded shapes.