SAE AS21230 Bearing, Plain, Self-Aligning, Grooved Outer Ringer Tfe Lined, Wide

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Product Code:SAE AS21230
Title:Bearing, Plain, Self-Aligning, Grooved Outer Ringer Tfe Lined, Wide
Issuing Committee:Acbg Plain Bearing Committee
Scope: No scope available.
Rationale: No scope available.
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【英文标准名称】:StandardTestMethodforLow-TemperatureViscosityofLubricantsMeasuredbyBrookfieldViscometer
【原文标准名称】:用Brookfield粘度计测定机动车试验液体润滑剂的低温粘度的试验方法
【标准号】:ASTMD2983-2004a
【标准状态】:现行
【国别】:
【发布日期】:2004
【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】:D02.07
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:石油产品;试验;润滑剂
【英文主题词】:oils-lubricating;gear,apparentviscosity;temperaturetests-petroleumproducts;viscosityofautomotivefluidlubricantsatlow-temperature;Brookfieldviscometer
【摘要】:Thelow-temperature,low-shear-rateviscosityofgearoils,automatictransmissionfluids,torqueandtractorfluids,andindustrialandautomotivehydraulicoils,AnnexA4,areofconsiderableimportancetotheproperoperationofmanymechanicaldevices.Measurementoftheviscometricpropertiesoftheseoilsandfluidsareoftenusedtospecifytheiracceptability.Thistestmethodisusedinanumberofspecifications.Thistestmethoddescribeshowtomeasureapparentviscositydirectlywithouttheerrorsassociatedwitheitherinterpolationorextrapolationofexperimentaldata.Note18212;Viscosityvaluesobtainedbyeitherinterpolationorextrapolationaresubjecttoerrorscausedbygelationornon-Newtonianresponsetorotorspeed,orboth.OnlyinthecaseofknownNewtonianoilsisinterpolationacceptableforthepurposeofcalibratingtherotorandglasscell.Ifsuchviscosityversustemperatureplotsarerequired,theycanbemadebytheprocedureoutlinedinAnnexA1.Note8212;AdaptedfromdrawingsofBrookfieldEngineeringLaboratories.FIG.1DiagramofNo.4LVCylindricalSpindle1.1ThistestmethodcoverstheuseoftheBrookfieldviscometerandalow-temperaturebathforthedeterminationofthelow-shear-rateviscosityoflubricants.Thetestmayoperateintheviscosityrangeof500to1000000mPas(cP).Thebath-controlledtemperatureisselectedwithintherangeof+5to-40176;C.1.2ThetestmethodusestheSIunit,milliPascal-second(mPas),astheunitofviscosity.(1cP=1mPas).1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:E34
【国际标准分类号】:75_100
【页数】:11P.;A4
【正文语种】:


【英文标准名称】:SpecificationforHeat-TreatedCarbonSteelJointBars
【原文标准名称】:热处理碳素钢连接棒材规范
【标准号】:ANSI/ASTMA49-2001
【标准状态】:作废
【国别】:美国
【发布日期】:2001
【实施或试行日期】:
【发布单位】:美国国家标准学会(ANSI)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:钢;棒材
【英文主题词】:steels;bars(materials)
【摘要】:
【中国标准分类号】:H44
【国际标准分类号】:77_140_60
【页数】:
【正文语种】:英语