MIL-STD-1156C (NOTICE 1)
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MIL-STD-1156C (NOTICE 1), MILITARY STANDARD: SANITARY STANDARDS FOR SOFT DRINK PLANTS (01 OCT 1987) [NO S/S DOCUMENT].
【英文标准名称】:StandardTestMethodsforCharacterizingDuplexGrainSizes
【原文标准名称】:双重晶粒度表征的标准试验方法
【标准号】:ASTME1181-2002(2008)
【标准状态】:现行
【国别】:美国
【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】:E04.08
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:areafraction;banding;bands;duplex;grainsize;necklace;Alloys;Areafractions;Banding;Bimodaldistribution;Comparisontechniques;Crystallatticestructure;Distribution;Duplexgrainstructures;Etching(materials/process);Grainsize;Imageana
【摘要】:Duplexgrainsizemayoccurinsomemetalsandalloysasaresultoftheirthermomechanicalprocessinghistory.Forcomparisonofmechanicalpropertieswithmetallurgicalfeatures,orforspecificationpurposes,itmaybeimportanttobeabletocharacterizegrainsizeinsuchmaterials.Assigninganaveragegrainsizevaluetoaduplexgrainsizespecimendoesnotadequatelycharacterizetheappearanceofthatspecimen,andmayevenmisrepresentitsappearance.Forexample,averagingtwodistinctlydifferentgrainsizesmayresultinreportingasizethatdoesnotactuallyexistanywhereinthespecimen.Thesetestmethodsmaybeappliedtospecimensorproductscontainingrandomlyintermingledgrainsoftwoormoresignificantlydifferentsizes(henceforthreferredtoasrandomduplexgrainsize).Examplesofrandomduplexgrainsizesinclude:isolatedcoarsegrainsinamatrixofmuchfinergrains,extremelywidedistributionsofgrainsizes,andbimodaldistributionsofgrainsize.Thesetestmethodsmayalsobeappliedtospecimensorproductscontaininggrainsoftwoormoresignificantlydifferentsizes,butdistributedintopologicallyvaryingpatterns(henceforthreferredtoastopologicalduplexgrainsizes).Examplesoftopologicalduplexgrainsizesinclude:systematicvariationofgrainsizeacrossthesectionofaproduct,necklacestructures,bandedstructures,andgerminativegraingrowthinselectedareasofcriticalstrain.Thesetestmethodsmaybeappliedtospecimensorproductsregardlessoftheirstateofrecrystallization.Becausethesetestmethodsdescribedeviationsfromasingle,log-normaldistributionofgrainsizes,andcharacterizepatternsofvariationingrainsize,thetotalspecimencross-sectionmustbeevaluated.Thesetestmethodsarelimitedtoduplexgrainsizesasidentifiablewithinasinglepolishedandetchedmetallurgicalspecimen.Ifduplexgrainsizeissuspectedinaproducttoolargetobepolishedandetchedasasinglespecimen,macroetchingshouldbeconsideredasafirststepinevaluation.Theentiremacroetchedcross-sectionshouldbeusedasabasisforestimatingareafractionsoccupiedbydistinctgrainsizes,ifpossible.Ifmicroscopicexaminationissubsequentlynecessary,individualspecimensmustbetakentoallowestimationofareafractionsfortheentireproductcross-section,andtoallowdeterminationofgrainsizesrepresentingtheentirecross-sectionaswell.Thesetestmethodsareintendedtobeappliedtoduplexgrainsizes.Duplexgrainstructures(forexample,multiphasealloys)arenotnecessarilyduplexingrainsize,andassucharenotthesubjectofthesemethods.However,thetestmethodsdescribedhereforareafractionestimationmaybeofuseindescribingduplexgrainstructures.1.1Thesetestmethodsprovidesimpleguidelinesfordecidingwhetheraduplexgrainsizeexists.Thetestmethodsseparateduplexgrainsizesintooneoftwodistinctclasses,thenintospecifictypeswithinthoseclasses,andprovidesystemsforgrainsizecharacterizationofeachtype.1.2Units8212;ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.3Thisstandardmayinvolvehazardousmaterials,operations,andequipment.Thisstandarddoesnotpurporttoaddressallofthesafetyconcernsassociatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoconsultappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortoitsuse.
【中国标准分类号】:A42
【国际标准分类号】:19_120
【页数】:15P.;A4
【正文语种】:英语
【英文标准名称】:Chimneys-Metalchimneys-Testmethods.
【原文标准名称】:烟囱.金属烟囱.试验方法
【标准号】:NFD35-305-2009
【标准状态】:现行
【国别】:法国
【发布日期】:2009-07-01
【实施或试行日期】:2009-07-24
【发布单位】:法国标准化协会(FR-AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:壁炉腔;烟囱帽;烟囱;元部件;抗压强度;建筑;设计;排气系统;火炉;烧制工艺;烟道座;炉膛;内部导管;作标记;数学计算;测量;测量技术;金属外壳;金属;特性;质量;测试
【英文主题词】:Chimneybreasts;Chimneyterminals;Chimneys;Components;Compressivestrength;Construction;Design;Exhaustsystems;Fireplaces;Firingtechniques;Flueblocks;Hearths;Internaltubes;Marking;Mathematicalcalculations;Measurement;Measuringtechniques;Metalcasings;Metals;Properties;Quality;Testing
【摘要】:
【中国标准分类号】:Q76
【国际标准分类号】:91_060_40
【页数】:44P;A4
【正文语种】:其他