【英文标准名称】:Plastics-Unsaturatedpolyesterresins-Determinationofhydroxylvalue
【原文标准名称】:塑料不饱和聚酯树脂羟基值的测定
【标准号】:ISO2554-1997
【标准状态】:现行
【国别】:国际
【发布日期】:1997-03
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/TC61
【标准类型】:()
【标准水平】:()
【中文主题词】:涂料;塑料;羟基值;定义;聚酯;材料试验;不饱和的;有机化合物;聚酯树脂;酸值;化学分析和试验
【英文主题词】:Acidnumber;Bushings;Chemicalanalysisandtesting;Definitions;Hydroxyl;Hydroxylvalue;Materialstesting;Organiccompounds;Paints;Plastics;Polyesterresins;Polyesters;Reagents;Testresults;Testing;Unsaturated
【摘要】:ThisInternationalStandardspecifiesamethodfordeterminingthehydroxylvalueofunsaturatedpolyesterresins.Infact,thismethoddeterminesthedifferencebetweenthehydroxylvalueandtheacidvalue;itisthereforenecessarytodeterminethetotalacidvalueseparately,inordertocalculatethehydroxylvalue.NOTE1Thehydroxylvalueofsaturatedpolyesterresins(forexample,polyesterresinusedforthemanufactureofpolyurethanesandpolymericplasticizers)andofcertaintypesofalkydresinsmayalsobedeterminedbythismethod.
【中国标准分类号】:G31
【国际标准分类号】:83_080_10
【页数】:4P;A4
【正文语种】:英语


【英文标准名称】:StandardTestMethodforHigh-Frequency(10kHz-1MHz)CoreLossofSoftMagneticCoreComponentsatControlledTemperaturesUsingtheVoltmeter-Ammeter-WattmeterMethod
【原文标准名称】:用伏特计、安培计和瓦特计测定可控温度下软磁芯部件的高频(10kHz-1MHz)磁芯损耗的标准试验方法
【标准号】:ASTMA1013-2000(2005)
【标准状态】:现行
【国别】:
【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】:A06.01
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:alternatingcurrent;core;coreloss;coretest;ferritecore;highfrequency;magneticmaterial;magnetictest;sinusoidal;softferrite;volt-amp-watt
【摘要】:Thistestmethodisdesignedfortestingofeithertoroidalormatedsoftmagneticcorecomponentsoverarangeoftemperatures,frequencies,andfluxdensities.Thereproducibilityandrepeatabilityofthistestmethodaresuchthatitissuitablefordesign,specificationacceptance,serviceevaluation,andresearchanddevelopment.1.1Thistestmethodcoverstheequipment,procedures,andmeasurementofcorelossofeithertoroidalormatedsoftmagneticcorecomponents,suchassoftferritecores,ironpowdercores,andsoforth,overrangesofcontrolledambienttemperaturestypicallyfrom20to+120C,frequenciesfrom10kHzto1MHz,undersinusoidalfluxconditions.1.2Thevaluesandequationsstatedincustomary(cgs-emuandinch-pound)ofSIunitsaretoberegardedseparatelyasstandard.Withinthistestmethod,SIunitsareshowninbracketsexceptforthesectionsconcerningcalculationswherethereareseparatesectionsfortherespectiveunitsystems.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnonconformancewiththisstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:L19
【国际标准分类号】:29_100_10
【页数】:4P.;A4
【正文语种】: