ANSI/ASTM F2071-2001 位置相近(非接触式)或限值(机械接触式)光纤开关规范
时间:2024-05-21 22:43:23 来源: 标准资料网 作者：标准资料网 阅读：9043
【英文标准名称】:SpecificationforSwitch,Position,Proximity(Non-Contact)orLimit(MechanicalContact),FiberOptic
【原文标准名称】:位置相近(非接触式)或限值(机械接触式)光纤开关规范
【标准号】:ANSI/ASTMF2071-2001
【标准状态】:现行
【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(US-ANSI)
【起草单位】:ASTM
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:Components;Contact;Fibreoptics;Fibres;Glassfibres;Mechanical;Proximity;Specification;Switchpositions;Telecommunications
【摘要】:Thisspecificationcoverstherequirementsforfiber-opticpositionswitches(proximityandlimit).Thisspecificationdoesnotincludeswitchesthattransferanopticalsignalfromonepathtoanotherbyanexternalforceorenergyappliedtotheswitch.ThevaluesstatedinSIunitsaretoregardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.Whereinformationistobespecified,itshallbestatedinSIunits.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.SpecialrequirementsfornavalshipboardapplicationsareincludedintheSupplement.
【中国标准分类号】:M33
【国际标准分类号】:33_180_20
【页数】:
【正文语种】:英语
【英文标准名称】:StandardTestMethodsforManganeseinWater
【原文标准名称】:水中锰的标准试验方法
【标准号】:ASTMD858-2007
【标准状态】:现行
【国别】:
【发布日期】:2007
【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】:D19.05
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:含量测定;锰;涂漆;涂料;测试;水
【英文主题词】:atomicabsorption;chelation;flame;graphitefurnace;manganese;water
【摘要】:Elementalconstituentsinpotablewater,receivingwater,andwastewaterneedtobeidentifiedforsupportofeffectivepollutioncontrolprograms.TestMethodsA,B,andCprovidethetechniquesnecessarytomakesuchmeasurements.Althoughinhaledmanganesedustshavebeenreportedtobetoxictohumans,manganesenormallyisingestedasatracenutrientinbothfoodandwater.Becauseitisconsideredtoberelativelynontoxictoman,aswellasaquaticlife,alimitof50x03BC;g/LhasbeenestablishedintheEPANationalSecondaryDrinkingWaterRegulations.Thislimitisbasedprimarilyonitsabilitytostainlaundryandproduceobjectionabletastesinbeverages.Manganesedoesnotoccurnaturallyasametalbutisfoundinvarioussaltsandminerals,frequentlyinassociationwithironcompounds.ManganeseisnotminedintheUnitedStatesexceptwhenmanganeseiscontainedinironoresthataredeliberatelyusedtoformferro-manganesealloys.Manganesesaltsareusedasfertilizeradditivesandarecommonlyfoundinsurfaceandgroundwaters.1.1Thesetestmethodscovertheatomicabsorptiondeterminationofdissolvedandtotalrecoverablemanganeseinwaterandcertainwastewaters.Threetestmethodsaregivenasfollows:TestMethodConcentrationRangeSectionsA-AtomicAbsorption,Direct0.1to5mg/L7to15B-AtomicAbsorption,Chelation-Extraction10to500g/L16to24C-AtomicAbsorption,GraphiteFurnace5to50g/L25to33【英文标准名称】:Railwayapplications-Axleboxlubricatinggreases-Methodtotesttheabilitytolubricate
【原文标准名称】:铁路应用.轴箱润滑脂.润滑能力的测试方法
【标准号】:BSEN14865-1-2009
【标准状态】:作废
【国别】:英国
【发布日期】:2009-10-31
【实施或试行日期】:2009-10-31
【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】:轴组装;定义;耐久性;;润滑脂;高速;高速火车;轴颈轴承;润滑;;精密度;质量保证;轨道;铁轨;钢轨;铁路设施;铁路工程;;铁道车辆;铁路;;警告;危险管理;安全;试验炉;试验;测试;痕量元素分析;速度;轮副轴承;轮副
【英文主题词】:Axleassemblies;Definitions;Frictionalbehaviour;Grease;Highspeed;Highspeedtrains;Journalbearings;Lubrication;Lubricity;Precision;Qualityassurance;Railtracks;Rails;Railwayapplications;Railwayengineering;Railwayoperation;Railwayvehicles;Railways;Rollerbearinglubrication;Safety;Testfurnaces;Testing;Velocity;Wheelsetbearings;Wheelsets
【摘要】:
【中国标准分类号】:E36
【国际标准分类号】:45_040;75_100
【页数】:24P;A4
【正文语种】:英语