ASTM E797/E797M-2010 手动超声波脉冲-回声接触法测定厚度的标准实施规程
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【英文标准名称】:StandardPracticeforMeasuringThicknessbyManualUltrasonicPulse-EchoContactMethod
【原文标准名称】:手动超声波脉冲-回声接触法测定厚度的标准实施规程
【标准号】:ASTME797/E797M-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】:E07.06
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:contactexamination;nondestructivetesting;pulse-echo;thicknessmeasurement;ultrasonics;Thickness;Ultrasonictesting
【摘要】:Thetechniquesdescribedprovideindirectmeasurementofthicknessofsectionsofmaterialsnotexceedingtemperaturesof93x00B0;C(200x00B0;F).Measurementsaremadefromonesideoftheobject,withoutrequiringaccesstotherearsurface.Ultrasonicthicknessmeasurementsareusedextensivelyonbasicshapesandproductsofmanymaterials,onprecisionmachinedparts,andtodeterminewallthinninginprocessequipmentcausedbycorrosionanderosion.Recommendationsfordeterminingthecapabilitiesandlimitationsofultrasonicthicknessgagesforspecificapplicationscanbefoundinthecitedreferences.,1.1Thispracticeprovidesguidelinesformeasuringthethicknessofmaterialsusingthecontactpulse-echomethodattemperaturesnottoexceed93x00B0;C(200x00B0;F).1.2Thispracticeisapplicabletoanymaterialinwhichultrasonicwaveswillpropagateataconstantvelocitythroughoutthepart,andfromwhichbackreflectionscanbeobtainedandresolved.1.3Units8212;ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnon-conformancewiththestandard1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:A50
【国际标准分类号】:17_040_20
【页数】:8P.;A4
【正文语种】:英语
【英文标准名称】:Electricalinsulatingmaterials-Thermalenduranceproperties-Part6:Determinationofthermalenduranceindices(TIandRTE)ofaninsulatingmaterialusingthefixedtimeframemethod
【原文标准名称】:电气绝缘材料.耐热性能.第6部分:使用固定时间框架法测定绝缘材料的耐热指数(TI和RTE)
【标准号】:IEC60216-6-2006
【标准状态】:现行
【国别】:国际
【发布日期】:2006-05
【实施或试行日期】:
【发布单位】:国际电工委员会(IX-IEC)
【起草单位】:IEC/TC112
【标准类型】:()
【标准水平】:()
【中文主题词】:温度变化;定义;电气工程;电绝缘材料;索引;绝缘材料;长期性状;数学计算;计算方法;特性;耐力;规范(验收);统计学;储存;温度;温度指数;温度变化试验;试验;热性能;材料热性质;耐热冲击能力;热稳定性;热试验
【英文主题词】:Changesoftemperature;Definitions;Electricalengineering;Electricalinsulatingmaterials;Indexes;Insulatingmaterials;Long-timebehaviour;Mathematicalcalculations;Methodsofcalculation;Properties;Resistance;Specification(approval);Statistics;Storage;Temperature;Temperatureindex;Testonchangesoftemperature;Testing;Thermalproperties;Thermalpropertiesofmaterials;Thermalshockendurance;Thermalstability;Thermaltest;Thermaltesting
【摘要】:ThispartofIEC60216specifiestheexperimentalandcalculationproceduresforderivingthethermalendurancecharacteristics,temperatureindex(TI)andrelativethermalenduranceindex(RTE)ofamaterialusingthe“fixedtimeframemethod(FTFM)”.Inthisprotocol,theageingtakesplaceforasmallnumberoffixedtimes,usingtheappropriatenumberofageingtemperaturesthroughouteachtime,thepropertiesofthespecimensbeingmeasuredattheendoftherelevanttimeinterval.ThisdiffersfromtheprocedureofIEC60216-1,whereageingisconductedatasmallnumberoffixedtemperatures,propertymeasurementtakingplaceafterageingtimesdependentontheprogressofageing.Thediagnostictestsemployedinthefixedtimeframemethodarerestrictedtodestructivetests.Themethodhasnotasyetbeenappliedtonon-destructiveorprooftestprocedures.BoththeTIandtheRTEdeterminedaccordingtotheFTFMprotocolarederivedfromexperimentaldataobtainedinaccordancewiththeinstructionsofIEC60216-1andIEC60216-2asmodifiedinthisstandard.ThecalculationproceduresandstatisticaltestsaremodifiedfromthoseofIEC60216-3andIEC60216-5.
【中国标准分类号】:K15
【国际标准分类号】:29_035_01
【页数】:97P.;A4
【正文语种】:英语