基本信息
| 标准名称： | 2 4-二氨基甲苯 |
| 中标分类： |
化工 >>
涂料、颜料、染料 >>
染料中间体 |
| 替代情况： | 改号为HG/T 3395-1980 |
| 发布日期： | |
| 实施日期： | 1993-05-01 |
| 首发日期： | |
| 作废日期： | |
| 出版日期： | |
| 页数： | 4页 |
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前言
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引用标准
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所属分类： 化工 涂料 颜料 染料 染料中间体
【英文标准名称】:StandardTestMethodsforColdCrushingStrengthandModulusofRuptureofRefractories
【原文标准名称】:耐火砖及异型砖的冷破碎强度和挠折模量的标准试验方法
【标准号】:ASTMC133-1997(2008)e1
【标准状态】:现行
【国别】:美国
【发布日期】:1997
【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】:
【英文主题词】:crushingstrength;modulusofrupture;monolithicrefractories;refractorybrick;roomtemperature;Compressiontesting--refractoryproducts;Crushingstrength;Modulusofrupture(MOR)--refractories;Refractories(brickandshapes)--modulusofrupture
【摘要】:Thecoldstrengthofarefractorymaterialisanindicationofitssuitabilityforuseinrefractoryconstruction.(Itisnotameasureofperformanceatelevatedtemperatures.)Thesetestmethodsarefordeterminingtheroomtemperatureflexuralstrengthin3-pointbending(coldmodulusofrupture)orcompressivestrength(coldcrushingstrength),orboth,forallrefractoryproducts.Considerablecaremustbeusedtocomparetheresultsofdifferentdeterminationsofthecoldcrushingstrengthormodulusofrupture.Thespecimensizeandshape,thenatureofthespecimenfaces(thatis,as-formed,sawed,orground),theorientationofthosefacesduringtesting,theloadinggeometry,andtherateofloadapplication,mayallsignificantlyaffectthenumericalresultsobtained.Comparisonsoftheresultsbetweendifferentdeterminationsshouldnotbemadeifoneormoreoftheseparametersdifferbetweenthetwodeterminations.Therelativeratioofthelargestgrainsizetothesmallestspecimendimensionmaysignificantlyaffectthenumericalresults.Forexample,smaller,cutspecimenscontaininglargegrainsmaypresentdifferentresultsthanthebricksfromwhichtheywerecut.Undernocircumstancesshould6-by1-by1-in.(152-by25-by25-mm)specimensbepreparedandtestedformaterialscontaininggrainswithamaximumgraindimensionexceeding0.25in.(6.4mm).Thistestmethodisusefulforresearchanddevelopment,engineeringapplicationanddesign,manufacturingprocesscontrol,andfordevelopingpurchasingspecifications.1.1Thesetestmethodscoverthedeterminationofthecoldcrushingstrengthandthemodulusofrupture(MOR)ofdriedorfiredrefractoryshapesofalltypes.1.2Thetestmethodsappearinthefollowingsections:TestMethod
Sections
ColdCrushingStrength
4to9
ModulusofRupture
10to15