【英文标准名称】:Low-voltagesurgeprotectivedevices-Part12:Surgeprotectivedevicesconnectedtolow-voltagepowersystems-Selectionandapplicationprinciples(IEC61643-12:2002,modified);GermanversionCLC/TS61643-12:2006
【原文标准名称】:低压电涌保护装置.第12部分:与低压电力系统连接的电涌保护装置.选择和应用原则
【标准号】:DINCLC/TS61643-12-2007
【标准状态】:作废
【国别】:德国
【发布日期】:2007-10
【实施或试行日期】:2007-10-01
【发布单位】:德国标准化学会(DE-DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:应用;定义;分配网;电力系统;电气工程;电气装置;电气安全;高电压;装置;安装;避雷装置;低电压;低压电路;低压电器;操作;过电流;过电流保护装置;过电压保护装置;性能;额定值;剩余电流驱动保护系统;危险;选择;规范(验收);电涌放电器;过电压保护;使用;电压保护
【英文主题词】:Applications;Classification;Definitions;Distributionnetworks;Electricpowersystems;Electricalengineering;Electricalinstallations;Electricalsafety;Grids;Highvoltage;Inserts;Installations;Lightningprotection;Lowvoltage;Low-voltagecircuit;Low-voltageequipment;Operation;Overcurrent;Overcurrentprotectiondevices;Overvoltage;Overvoltageprotection;Performance;Principles;Properties;Protectiveequipment;Ratings;Residualcurrent-operatedprotectivesystem;Risk;Riskanalysis;Selection;Specification(approval);Surgearresters;Surgeprotection;Use;Voltageprotection
【摘要】:
【中国标准分类号】:K45
【国际标准分类号】:29_240_10
【页数】:83P.;A4
【正文语种】:德语


【英文标准名称】:StandardTestMethodforAnalysisofAqueousExtractableProteininNaturalRubberandItsProductsUsingtheModifiedLowryMethod
【原文标准名称】:用改进半空细胞法分析天然橡胶及其制品中水可萃取蛋白质的标准试验方法
【标准号】:ASTMD5712-2005e1
【标准状态】:现行
【国别】:
【发布日期】:2005
【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】:D11.40
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:蛋白质;天然橡胶;试验;分光光度法
【英文主题词】:aminoacidanalysis;Lowry;naturalrubberlatex;protein
【摘要】:Thistestmethod,forthedeterminationofproteinlevelsinNR,isprimarilyintendedtotestNRmaterialsforresidualproteincontent.Itisassumedthatallwhousethistestmethodwillbetrainedanalystscapableofperformingcommonlaboratoryproceduresskillfullyandsafely.Itisexpectedthatworkwillbeperformedinaproperlyequippedlaboratory.1.1Thistestmethodcoversananalyticaltestfordeterminingtheamountoftotalaqueousextractableproteinassociatedwithnaturalrubber(NR)anditsproducts.Watersolubleproteinsareextractedinabuffersolutionandthenprecipitatedtoconcentratethemandalsotoseparatethemfromwatersolublesubstancesthatmayinterferewiththedetermination.TheextractedproteinisredissolvedandquantifiedcolorimetricallybythemodifiedLowrymethodusingaproteinstandard.1.2Forthepurposeofthistestmethod,therangeofproteinmeasurementwillbebasedonthelimitofdetectionandquantitationandrecordedinmicrogramsperdm2NRspecimen.1.3Thetestmethodisdesignedtobeaccurateandcompatiblewiththeindustrialenvironment.1.4Stepsareincludedinthistestmethodtominimizetheeffectsofinterferingsubstances.1.5Itisrecognizedthatothermethodsfortheanalysisofleachableproteinsexistandthesemaybeusedforroutinequalitycontrolpurposesprovidedtheyhavebeenvalidatedandacorrelationestablishedagainstthereferencemethodspecifiedbythistestmethod.1.6ThevaluesstatedinSIunitsaretoberegardedasthestandard.Nootherunitsofmeasurementareincludedinthisstandard.1.7Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:G40
【国际标准分类号】:83_040_10
【页数】:9P.;A4
【正文语种】: