ASTM E228-2006 用推杆膨胀计测定固体材料线性热膨胀系数的标准试验方法
作者:标准资料网
时间:2024-05-03 18:43:56
浏览:9980
来源:标准资料网
下载地址: 点击此处下载
【英文标准名称】:StandardTestMethodforLinearThermalExpansionofSolidMaterialsWithaPush-RodDilatometer
【原文标准名称】:用推杆膨胀计测定固体材料线性热膨胀系数的标准试验方法
【标准号】:ASTME228-2006
【标准状态】:现行
【国别】:
【发布日期】:2006
【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】:E37.05
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:膨胀计;实验室器皿;材料;石英玻璃;固体;统计学;测试;热膨胀;透明石英
【英文主题词】:contraction;dilatometer;dilatometry;expansion;expansivity;linearthermalexpansion;meancoefficientofthermalexpansion;push-rod
【摘要】:1.1Thistestmethodcoversthedeterminationofthelinearthermalexpansionofrigidsolidmaterialsusingpush-roddilatometers.Thismethodisapplicableoveranypracticaltemperaturerangewhereadevicecanbeconstructedtosatisfytheperformancerequirementssetforthinthisstandard.Note1Initially,thismethodwasdevelopedforvitreoussilicadilatometersoperatingoveratemperaturerangeof-180to900176;C.Theconceptsandprincipleshavebeenamplydocumentedintheliteraturetobeequallyapplicableforoperatingathighertemperatures.Theprecisionandbiasofthesesystemsisbelievedtobeofthesameorderasthatforsilicasystemsupto900176;C.However,theirprecisionandbiashavenotyetbeenestablishedovertherelevanttotalrangeoftemperatureduetothelackofwell-characterizedreferencematerialsandtheneedforinterlaboratorycomparisons.1.2Forthispurpose,arigidsolidisdefinedasamaterialthat,attesttemperatureandunderthestressesimposedbyinstrumentation,hasanegligiblecreeporelasticstrainrate,orboth,thusinsignificantlyaffectingtheprecisionofthermal-lengthchangemeasurements.Thisincludes,asexamples,metals,ceramics,refractories,glasses,rocksandminerals,graphites,plastics,cements,curedmortars,woods,andavarietyofcomposites.1.3Theprecisionofthiscomparativetestmethodishigherthanthatofotherpush-roddilatometrytechniques(forexample,TestMethodD696)andthermomechanicalanalysis(forexample,TestMethodE831)butissignificantlylowerthanthatofabsolutemethodssuchasinterferometry(forexample,TestMethodE289).Itisgenerallyapplicabletomaterialshavingabsolutelinearexpansioncoefficientsexceeding0.5m/(mC)fora1000176;Crange,andunderspecialcircumstancescanbeusedforlowerexpansionmaterialswhenspecialprecautionsareusedtoensurethattheproducedexpansionofthespecimenfallswithinthecapabilitiesofthemeasuringsystem.Insuchcases,asufficientlylongspecimenwasfoundtomeetthespecification.1.4Computer-orelectronic-basedinstrumentation,techniques,anddataanalysissystemsmaybeusedinconjunctionwiththistestmethod,aslongasitisestablishedthatsuchasystemstrictlyadherestotheprinciplesandcomputationalschemessetforthinthismethod.Usersofthetestmethodareexpresslyadvisedthatallsuchinstrumentsortechniquesmaynotbeequivalentandmayomitordeviatefromthemethodologydescribedhereunder.Itistheresponsibilityoftheusertodeterminethenecessaryequivalencypriortouse.1.5SIunitsarethestandard.1.6ThereisnoISOmethodequivalenttothisstandard.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:A42
【国际标准分类号】:19_060
【页数】:9P.;A4
【正文语种】:
【原文标准名称】:用推杆膨胀计测定固体材料线性热膨胀系数的标准试验方法
【标准号】:ASTME228-2006
【标准状态】:现行
【国别】:
【发布日期】:2006
【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】:E37.05
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:膨胀计;实验室器皿;材料;石英玻璃;固体;统计学;测试;热膨胀;透明石英
【英文主题词】:contraction;dilatometer;dilatometry;expansion;expansivity;linearthermalexpansion;meancoefficientofthermalexpansion;push-rod
【摘要】:1.1Thistestmethodcoversthedeterminationofthelinearthermalexpansionofrigidsolidmaterialsusingpush-roddilatometers.Thismethodisapplicableoveranypracticaltemperaturerangewhereadevicecanbeconstructedtosatisfytheperformancerequirementssetforthinthisstandard.Note1Initially,thismethodwasdevelopedforvitreoussilicadilatometersoperatingoveratemperaturerangeof-180to900176;C.Theconceptsandprincipleshavebeenamplydocumentedintheliteraturetobeequallyapplicableforoperatingathighertemperatures.Theprecisionandbiasofthesesystemsisbelievedtobeofthesameorderasthatforsilicasystemsupto900176;C.However,theirprecisionandbiashavenotyetbeenestablishedovertherelevanttotalrangeoftemperatureduetothelackofwell-characterizedreferencematerialsandtheneedforinterlaboratorycomparisons.1.2Forthispurpose,arigidsolidisdefinedasamaterialthat,attesttemperatureandunderthestressesimposedbyinstrumentation,hasanegligiblecreeporelasticstrainrate,orboth,thusinsignificantlyaffectingtheprecisionofthermal-lengthchangemeasurements.Thisincludes,asexamples,metals,ceramics,refractories,glasses,rocksandminerals,graphites,plastics,cements,curedmortars,woods,andavarietyofcomposites.1.3Theprecisionofthiscomparativetestmethodishigherthanthatofotherpush-roddilatometrytechniques(forexample,TestMethodD696)andthermomechanicalanalysis(forexample,TestMethodE831)butissignificantlylowerthanthatofabsolutemethodssuchasinterferometry(forexample,TestMethodE289).Itisgenerallyapplicabletomaterialshavingabsolutelinearexpansioncoefficientsexceeding0.5m/(mC)fora1000176;Crange,andunderspecialcircumstancescanbeusedforlowerexpansionmaterialswhenspecialprecautionsareusedtoensurethattheproducedexpansionofthespecimenfallswithinthecapabilitiesofthemeasuringsystem.Insuchcases,asufficientlylongspecimenwasfoundtomeetthespecification.1.4Computer-orelectronic-basedinstrumentation,techniques,anddataanalysissystemsmaybeusedinconjunctionwiththistestmethod,aslongasitisestablishedthatsuchasystemstrictlyadherestotheprinciplesandcomputationalschemessetforthinthismethod.Usersofthetestmethodareexpresslyadvisedthatallsuchinstrumentsortechniquesmaynotbeequivalentandmayomitordeviatefromthemethodologydescribedhereunder.Itistheresponsibilityoftheusertodeterminethenecessaryequivalencypriortouse.1.5SIunitsarethestandard.1.6ThereisnoISOmethodequivalenttothisstandard.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:A42
【国际标准分类号】:19_060
【页数】:9P.;A4
【正文语种】:
下载地址:
点击此处下载