NF D62-023-2004 厨房家具.厨房家具和器具的协调尺寸

上一篇: NF B54-051-2-2004 纤维板.规范.第2部分:硬质纤维板的要求
下一篇: NF G07-220-2-2004 纺织物.棉纤维粘着性测定.第2部分:使用自动热检测板设备的方法

【英文标准名称】:StandardTestMethodforDynamicYoung''sModulus,ShearModulus,andPoisson''sRatioofRefractoryMaterialsbyImpulseExcitationofVibration
【原文标准名称】:用振动的脉冲激励法测试耐火材料动态杨式模量、剪切模量及泊松比的标准方法
【标准号】:ASTMC1548-2002(2007)
【标准状态】:现行
【国别】:
【发布日期】:2002
【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】:C08.01
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:激励;脉冲;振动;耐火材料;杨氏模量;剪切模量;动态的;泊松比;耐熔制品
【英文主题词】:dynamicshearmodulus;dynamicPoisson'sratio;dynamicYoung'smodulus;elasticproperties;impulseexcitation;refractoryshapes
【摘要】:Thistestmethodisnon-destructiveandiscommonlyusedformaterialcharacterizationanddevelopment,designdatageneration,andqualitycontrolpurposes.Thetestassumesthatthepropertiesofthespecimenareperfectlyisotropic,whichmaynotbetrueforsomerefractorymaterials.Thetestalsoassumesthatthespecimenishomogeneousandelastic.Specimensthataremicro-crackedaredifficulttotestsincetheydonotyieldconsistentresults.Specimenswithlowdensitieshaveadampingeffectandareeasilydamagedlocallyattheimpactpoint.Insulatingbrickscangenerallybetestedwiththistechnique,butfibrousinsulatingmaterialsaregenerallytooweakandsofttotest.Forqualitycontroluse,thetestmethodmaybeusedformeasuringonlyresonantfrequenciesofanystandardsizespecimen.Anelasticmoduluscalculationmaynotbeneededorevenfeasibleiftheshapeisnon-standard,suchasaslidegateplatecontainingahole.Sincespecimenswillvaryinbothsizeandmass,acceptablefrequenciesforeachshapeandmaterialmustbeestablishedfromstatisticaldata.Dimensionalvariationscanhaveasignificanteffectonmodulusvaluescalculatedfromthefrequencymeasurements.Surfacegrindingmayberequiredtobringsomematerialsintothespecifiedtolerancerange.Sincecylindricalshapesarenotcommonlymadefromrefractorymaterialstheyarenotcoveredbythistestmethod,butarecoveredinTestMethodC215.1.1ThistestmethodcoversthemeasurementofthefundamentalresonantfrequenciesforthepurposeofcalculatingthedynamicYoung''smodulus,thedynamicshearmodulus(alsoknownasthemodulusofrigidity),andthedynamicPoisson''sratioofrefractorymaterialsatambienttemperatures.Specimensofthesematerialspossessspecificmechanicalresonantfrequencies,whicharedeterminedbytheelasticmodulus,mass,andgeometryofthetestspecimen.Therefore,thedynamicelasticpropertiescanbecomputedifthegeometry,mass,andmechanicalresonantfrequenciesofasuitablespecimencanbemeasured.ThedynamicYoung''smodulusisdeterminedusingtheresonantfrequencyintheflexuralmodeofvibrationandthedynamicshearmodulusisdeterminedusingtheresonantfrequencyinthetorsionalmodeofvibration.Poisson''sratioiscomputedfromthedynamicYoung''smodulusandthedynamicshearmodulus.1.2Althoughnotspecificallydescribedherein,thismethodcanalsobeperformedathightemperatureswithsuitableequipmentmodificationsandappropriatemodificationstothecalculationstocompensateforthermalexpansion.1.3ThevaluesarestatedinSIunitsandaretoberegardedasthestandard.1.4Thisstandardmayinvolvehazardousmaterials,operations,andequipment.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Q40
【国际标准分类号】:81_080
【页数】:7P.;A4
【正文语种】:


【英文标准名称】:Germanconstructioncontractprocedures(VOB)-PartC:Generaltechnicalspecificationsinconstructioncontracts(ATV)-Flooringwork
【原文标准名称】:德国建筑包工合同条例(VOB).第C部分:建筑合同(ATV)通用技术规范.地面铺装工程
【标准号】:DIN18365-2010
【标准状态】:作废
【国别】:德国
【发布日期】:2010-04
【实施或试行日期】:
【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】:帐目;附加性能;胶粘剂;ATV;建筑合同;建筑工程;建筑物;组件;建筑;施工材料;施工作业;施工工程;建筑工程承包条例;承包条例;签约;合同;软木制品;覆盖物;设计;地板覆盖物;铺地面作业;敷设;油地毡;性能;性能规范;塑料;橡胶;规范(验收);地基;承包条款;纺织材料;地毯衬垫
【英文主题词】:Accounts;AdditionalPerformance;Adhesives;ATV;Buildingcontracts;Buildingworks;Buildings;Components;Construction;Constructionmaterials;Constructionoperations;Constructionworks;Contractprocedureforbuildingworks;Contractprocedures;Contracting;Contractingprocedures;Contracts;Cork;Coverings;Design;Floorcoverings;Flooringworks;Laying;Linoleum;Performance;Performancespecification;Plastics;Rubber;Specification(approval);Subsoil;Termsofcontract;Textiles;Underlays
【摘要】:
【中国标准分类号】:P02;P32
【国际标准分类号】:91_010_20;91_180
【页数】:13P;A4
【正文语种】:德语