NF P18-981-2005 混凝土结构的保护和维修用产品和系统.试验方法.过滤稳定性的测定
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来源:标准资料网
【英文标准名称】:Productsandsystemsfortheprotectionandrepairofconcretestructures-Testmethod-Determinationofthefiltrationstability.
【原文标准名称】:混凝土结构的保护和维修用产品和系统.试验方法.过滤稳定性的测定
【标准号】:NFP18-981-2005
【标准状态】:现行
【国别】:法国
【发布日期】:2005-03-01
【实施或试行日期】:2005-03-05
【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】:试验;规范(验收);定义;施工材料;铰接式接头;混凝土;稳定性;过滤率;维修;抽样方法;产品;评定;结构;质量控制;建筑;试样制备;过滤;渗透性试验
【英文主题词】:
【摘要】:
【中国标准分类号】:P25
【国际标准分类号】:91_080_40
【页数】:10P;A4
【正文语种】:其他
【英文标准名称】:StandardTestMethodforPermeabilityofPowderMetallurgy(PM)BearingsUsingNitrogenGas
【原文标准名称】:使用氮气测定(PM)轴承的磁导率的标准试验方法
【标准号】:ASTMB966-2010
【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】:B09.04
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:oilfilm;permeability;PMbearing;rotameter;self-lubricating
【摘要】:Inservice,thereisaspacebetweenashaftandaself-lubricatingPMbearingthatcontainsanoilfilmwhenthebearingisoperatingproperly.Intheeventtheoilfilmisdisruptedorfailstoformthebearingwillexhibitincreasedwearandpossiblyfail.ThereforetheabilityforoiltoflowthroughtheporosityofaPMbearingiscriticaltotheperformanceofthebearing.Theporosityofthebearingmustbeopentothesurfaceandinterconnectedwithinthebearing.Thisallowstheoilinaself-lubricatingPMbearingtoflowduringoperationtothespacebetweenthebearingandtheshafttoformanoilfilmandprotecttheshaftfromwear.Theabilityofagastoflowthroughthebearingreflectstheopennessandinterconnectedpropertiesoftheporosityinthebearing.Datafromthistestcanbeusedasaninternalqualitytoolandcanbereportedtobuyersofbearings.Anumberofotherfactorsalsoaffecttheperformanceofthebearingandthemovementofoil;factorssuchastheoilviscosity,operatingtemperature,load,shaftspeed,surfacearea,surfacefinishesandothers.Thistestprovidesinformationononlyonepropertyandcannotbethesoleconsiderationinthedesignandtestingofabearingapplication.1.1ThistestmethodcoversthedeterminationofthepermeabilityofaPMbearingwhensubjectedtopressurizednitrogenundercontrolledconditions.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandardwiththeexceptionofflowrateforwhichthecm3/minunitistheindustrystandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:J11
【国际标准分类号】:21_100_01
【页数】:4P.;A4
【正文语种】:英语
Product Code:SAE AMS4000
Title:Aluminum Sheet and Plate (1060-0) (NONCURRENT)
Issuing Committee:Ams D Nonferrous Alloys Committee
Scope:This specification covers aluminum in the form of sheet and plate.
