ASTM D 1641-1997 外用清漆耐用性的试验方法

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【英文标准名称】:StandardTestMethodsforWaterinCrudeOilsbyCoulometricKarlFischerTitration
【原文标准名称】:用电量计卡耳费歇尔滴定法对原油中水的标准试验方法
【标准号】:ASTMD4928-2000(2010)
【标准状态】:现行
【国别】:美国
【发布日期】:2000
【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】:D02.02.0B
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:coulometric;crudeoils;homogenization;KarlFischer;shearmixer;titration;water;waterincrudeoils;Coulometry;Crudepetroleumproducts;KarlFischerreagentmethod--watercontent;Watercontent--crudeoil
【摘要】:Aknowledgeofthewatercontentofcrudeoilisimportantintherefining,purchase,sale,ortransferofcrudeoils.1.1Thistestmethodcoversthedeterminationofwaterintherangefrom0.02to5massorvolume%incrudeoils.Mercaptan(RSH)andsulfide(Sx2212;orH2S)assulfurareknowntointerferewiththistestmethod,butatlevelsoflessthan500x03BC;g/g(ppm),theinterferencefromthesecompoundsisinsignificant(seeSection5).1.2Thistestmethodcanbeusedtodeterminewaterinthe0.005to0.02mass%range,buttheeffectsofthemercaptanandsulfideinterferenceattheselevelshasnotbeendetermined.1.3ThistestmethodisintendedforusewithstandardcommerciallyavailablecoulometricKarlFischerreagent.1.4ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Forspecifichazardstatements,seeSection7.
【中国标准分类号】:E21
【国际标准分类号】:75_040
【页数】:5P.;A4
【正文语种】:英语


【英文标准名称】:Fibreopticcommunicationsubsystembasictestprocedures-Testproceduresfordigitalsystems-Receiversensitivityandoverloadmeasurement-Testproceduresfordigitalsystems-Receiversensitivityandoverloadmeasurement
【原文标准名称】:纤维光学通信子系统基本试验程序.数字系统试验程序.接收器灵敏度和过载测量
【标准号】:BSEN61280-2-1-1999
【标准状态】:作废
【国别】:英国
【发布日期】:1999-06-15
【实施或试行日期】:1999-06-15
【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】:数字信号;输入功率;纤维光学;光学;数学计算;电信;灵敏度;灵敏度级别;试验;测量;过载试验;跳动;超荷载;接收机;光波导
【英文主题词】:Digitalsignals;Fibreoptics;Inputpower;Jitter;Mathematicalcalculations;Measurement;Opticalwaveguides;Optics;Overload;Overloadtests;Receivers;Sensitivity;Sensitivitylevels;Telecommunications;Testing
【摘要】:Thisstandardspecifiesatestprocedureapplicabletodigitalfibreopticcommunicationsystems.Oneobjectofthistestprocedureistomeasuretheminimumandmaximumopticalpowersrequiredandallowedattheinputofasingle-modefibreopticsystemreceiverconnectortooperateatspecifiedBERs.Anotherobjectistoverifythattheguaranteederrorperformanceisobtainedattheminimumandthemaximumopticalinputpowersspecifiedbytheterminalequipmentmanufacturer.
【中国标准分类号】:M33
【国际标准分类号】:33_180_01
【页数】:16P;A4
【正文语种】:英语