ASTM F 1535-1994 用非接触测量微波反射所致光电导性衰减测定载流子复合寿命的试验方法

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【英文标准名称】:Industrialautomationsystemsandintegration-Productdatarepresentationandexchange-Part1726:Applicationmodule:Physicalunit2Dshape
【原文标准名称】:工业自动化系统和集成.产品数据表示和交换.第1726部分:应用模块:物理单元二维设计模型
【标准号】:ISO/TS10303-1726-2010
【标准状态】:现行
【国别】:国际
【发布日期】:2010-03
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/TC184
【标准类型】:()
【标准水平】:()
【中文主题词】:应用;自动化;自动化系统;数据交换;数据表示;工业产品;信息交换;信息技术;过程自动化;产品数据;表示法;二维的
【英文主题词】:Applications;Automation;Automationsystems;Dataexchange;Datarepresentation;Industrialproducts;Informationinterchange;Informationtechnology;Processautomation;Productdata;Representations;Two-dimensional
【摘要】:
【中国标准分类号】:N18
【国际标准分类号】:35_240_50
【页数】:8P;A4
【正文语种】:英语


【英文标准名称】:StandardTestMethodforPotentialAlkaliReactivityofAggregates(Mortar-BarMethod)
【原文标准名称】:集料潜在碱性反应用标准试验方法(灰浆棒法)
【标准号】:ASTMC1260-2007
【标准状态】:现行
【国别】:
【发布日期】:2007
【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】:C09.26
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:集料;碱金属;灰浆;反应
【英文主题词】:aggregate;alkali-silicareactivity;lengthchange;mortar;sodiumhydroxide
【摘要】:Thistestmethodprovidesameansofdetectingthepotentialofanaggregateintendedforuseinconcreteforundergoingalkali-silicareactionresultinginpotentiallydeleteriousinternalexpansion.ItisbasedontheNBRIAcceleratedTestMethod(1-4).3Itisespeciallyusefulforaggregatesthatreactslowlyorproduceexpansionlateinthereaction.However,itdoesnotevaluatecombinationsofaggregateswithcementitiousmaterialsnorarethetestconditionsrepresentativeofthoseencounteredbyconcreteinservice.BecausethespecimensareexposedtoaNaOHsolution,thealkalicontentofthecementisnotasignificantfactorinaffectingexpansions.Whenexcessiveexpansions(seeAppendixX1)areobserved,itisrecommendedthatsupplementaryinformationbedevelopedtoconfirmthattheexpansionisactuallyduetoalkali-silicareaction.Sourcesofsuchsupplementaryinformationinclude:(1)petrographicexaminationoftheaggregate(GuideC295)todetermineifknownreactiveconstituentsarepresent;(2)examinationofthespecimensaftertests(PracticeC856)toidentifytheproductsofalkalireaction;and(3)whereavailable,fieldservicerecordscanbeusedintheassessmentofperformance.Whenithasbeenconcludedfromtheresultsoftestsperformedusingthistestmethodandsupplementaryinformationthatagivenaggregateshouldbeconsideredpotentiallydeleteriouslyreactive,theuseofmitigativemeasuressuchaslow-alkaliportlandcement,mineraladmixtures,orgroundgranulatedblast-furnaceslagshouldbeevaluated(seelastsentenceof4.1).1.1Thistestmethodpermitsdetection,within16days,ofthepotentialfordeleteriousalkali-silicareactionofaggregateinmortarbars.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Thevaluesininch-poundunitsareshowninparentheses,andareforinformationalpurposesonly.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.AspecificprecautionarystatementisgiveninthesectiononReagents.
【中国标准分类号】:Q13
【国际标准分类号】:91_100_10
【页数】:5P.;A4
【正文语种】: