EN ISO 3262-19-2000 涂料用填充剂.规范和试验方法.第19部分:沉淀石英

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【英文标准名称】:Extendersforpaints-Specificationsandmethodsoftest-Part19:Precipitatedsilica(ISO3262-19:2000);GermanversionENISO3262-19:2000
【原文标准名称】:涂料用填充剂.规范和试验方法.第19部分:沉淀石英
【标准号】:ENISO3262-19-2000
【标准状态】:现行
【国别】:
【发布日期】:2000-10
【实施或试行日期】:
【发布单位】:欧洲标准学会(EN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:涂料;定义;规范;规范(验收);材料规范;材料试验;覆层材料;染料;pH值;表面处理;特性;试验;填充剂;测试;硅酸;粉末;二氧化硅;系统论;额定值;沉淀
【英文主题词】:Coatingmaterials;Definition;Definitions;Dyes;Extenders;Materialsspecification;Materialstesting;Paints;pH;Powder;Precipitation;Properties;Ratings;Silicicacid;Silicondioxide;Specification(approval);Specifications;Surfacetreatment;Systemology;Testing;Tests
【摘要】:
【中国标准分类号】:G51
【国际标准分类号】:87_060_10
【页数】:13P.;A4
【正文语种】:英语


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【英文标准名称】:Radio-frequencycables;part2:relevantcablespecifications;amendmentNo.1toIEC60096-2:1961
【原文标准名称】:射频电缆第2部分:相关电缆规范修改1
【标准号】:IEC60096-2AMD1-1990
【标准状态】:作废
【国别】:国际
【发布日期】:1990-01
【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/SC46A
【标准类型】:()
【标准水平】:()
【中文主题词】:特性;规范(验收);额定值;电信;试验;电气工程;射频电缆;电缆;电缆;高频
【英文主题词】:Cables;Electriccables;Electricalengineering;Highfrequencies;Properties;Radiofrequencycables;Ratings;Specification(approval);Telecommunication;Testing
【摘要】:MakesanamendmenttoIECPublication96-2.DrawsattentiontothefactthatinSection2"Electricaltests"under"Attenuation"thevalue"0.55"intherequirementscolumnheaded"max."istobedeletedandreplacedbythevalue"0.62".Thisamendmentc
【中国标准分类号】:L91
【国际标准分类号】:33_120_10
【页数】:3P;A4
【正文语种】:英语


【英文标准名称】:StandardTestMethodforYoung''sModulus,ShearModulus,andPoisson''sRatioForCeramicWhitewaresbyResonance
【原文标准名称】:用共振法测定卫生陶瓷的杨氏模量、切变模量和泊松比的标准试验方法
【标准号】:ASTMC848-1988(2006)
【标准状态】:现行
【国别】:
【发布日期】:1988
【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】:C21.03
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:工业瓷器;弹性模量;泊松比;剪切模量;共振;陶瓷;试验
【英文主题词】:cermaicwhitewares;Poisson'sratio;resonance;shearmodulus;Young'smodulus
【摘要】:Thistestsystemhasadvantagesincertainrespectsovertheuseofstaticloadingsystemsinthemeasurementofceramicwhitewares.3.1.1Onlyminutestressesareappliedtothespecimen,thusminimizingthepossibilityoffracture.3.1.2Theperiodoftimeduringwhichstressisappliedandremovedisoftheorderofhundredsofmicroseconds,makingitfeasibletoperformmeasurementsattemperatureswheredelayedelasticandcreepeffectsproceedonamuch-shortenedtimescale.Thistestmethodissuitablefordetectingwhetheramaterialmeetsspecifications,ifcognizanceisgiventooneimportantfact:ceramicwhitewarematerialsaresensitivetothermalhistory.Therefore,thethermalhistoryofatestspecimenmustbeknownbeforethemodulicanbeconsideredintermsofspecifiedvalues.Materialspecificationsshouldincludeaspecificthermaltreatmentforalltestspecimens.1.1Thistestmethodcoversthedeterminationoftheelasticpropertiesofceramicwhitewarematerials.Specimensofthesematerialspossessspecificmechanicalresonancefrequencieswhicharedefinedbytheelasticmoduli,density,andgeometryofthetestspecimen.Thereforetheelasticpropertiesofamaterialcanbecomputedifthegeometry,density,andmechanicalresonancefrequenciesofasuitabletestspecimenofthatmaterialcanbemeasured.Young''smodulusisdeterminedusingtheresonancefrequencyintheflexuralmodeofvibration.Theshearmodulus,ormodulusofrigidity,isfoundusingtorsionalresonancevibrations.Young''smodulusandshearmodulusareusedtocomputePoisson''sratio,thefactoroflateralcontraction.1.2Allceramicwhitewarematerialsthatareelastic,homogeneous,andisotropicmaybetestedbythistestmethod.Thistestmethodisnotsatisfactoryforspecimensthathavecracksorvoidsthatrepresentinhomogeneitiesinthematerial;neitherisitsatisfactorywhenthesematerialscannotbepreparedinasuitablegeometry.Note1Elasticheremeansthatanapplicationofstresswithintheelasticlimitofthatmaterialmakingupthebodybeingstressedwillcauseaninstantaneousanduniformdeformation,whichwillceaseuponremovalofthestress,withthebodyreturninginstantlytoitsoriginalsizeandshapewithoutanenergyloss.Manyceramicwhitewarematerialsconformtothisdefinitionwellenoughthatthistestismeaningful.Note2Isotropicmeansthattheelasticpropertiesarethesameinalldirectionsinthematerial.1.3Acryogeniccabinetandhigh-temperaturefurnacearedescribedformeasuringtheelasticmoduliasafunctionoftemperaturefrom195to1200C.1.4Modificationofthetestforuseinqualitycontrolispossible.Arangeofacceptableresonancefrequenciesisdeterminedforapiecewithaparticulargeometryanddensity.Anyspecimenwithafrequencyresponsefallingoutsidethisfrequencyrangeisrejected.Theactualmodulusofeachpieceneednotbedeterminedaslongasthelimitsoftheselectedfrequencyrangeareknowntoincludetheresonancefrequencythatthepiecemustpossessifitsgeometryanddensityarewithinspecifiedtolerances.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Q33
【国际标准分类号】:81_060_20
【页数】:7P.;A4
【正文语种】: