JGJ 155-2007 种植屋面工程技术规程
作者:标准资料网 时间:2024-05-13 16:06:09 浏览:8747
来源:标准资料网
基本信息
标准名称: | 种植屋面工程技术规程 |
英文名称: | Technical specification for planted roof |
中标分类: |
工程建设 >>
工业与民用建筑工程 >>
建筑构造与装饰工程 |
ICS分类: |
建筑材料和建筑物 >>
建筑构件 >>
屋顶
|
发布部门: | 中华人民共和国建设部 |
发布日期: | 2007-07-02 |
实施日期: | 2007-11-01 |
首发日期: | |
作废日期: | |
起草单位: | 中国建筑防水材料工业协会等 |
起草人: | 王天、朱冬青、李承刚、孙庆祥、张道真等 |
出版社: | 中国建筑工业出版社 |
出版日期: | 2007-11-01 |
页数: | 62页 |
适用范围
本规程适用于新建和既有建筑屋面、地下建筑顶板种植工程的设计、施工和质量验收。
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所属分类: 工程建设 工业与民用建筑工程 建筑构造与装饰工程 建筑材料和建筑物 建筑构件 屋顶
基本信息
标准名称: | 防鼠板 |
中标分类: |
船舶 >>
舾装设备 >>
舱面属具 |
替代情况: | CB 636-1967;被CB/T 636-2005代替 |
发布日期: | 1984-05-30 |
实施日期: | 1985-08-01 |
首发日期: | 1900-01-01 |
作废日期: | 2005-07-01 |
出版日期: | 1985-08-01 |
页数: | 3页 |
适用范围
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所属分类: 船舶 舾装设备 舱面属具
【英文标准名称】:StandardPracticeforDeterminingtheInclusionorSecond-PhaseConstituentContentofMetalsbyAutomaticImageAnalysis
【原文标准名称】:用自动图象分析法测定钢和其他金属杂质含量的规程
【标准号】:ASTME1245-2003(2008)
【标准状态】:现行
【国别】:美国
【发布日期】:2003
【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】:E04.14
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:exogenousinclusion;feature-specificmeasurements;fieldmeasurements;imageanalysis;inclusions;indigenousinclusions;lightmicroscopy;oxide;second-phaseparticles;statisticalanalysis;stereology;sulfide;Photomicrography;Second-phase
【摘要】:Thispracticeisusedtoassesstheindigenousinclusionsorsecond-phaseconstituentsofmetalsusingbasicstereologicalproceduresperformedbyautomaticimageanalyzers.Thispracticeisnotsuitableforassessingtheexogenousinclusionsinsteelsandothermetals.Becauseofthesporadic,unpredictablenatureofthedistributionofexogenousinclusions,othermethodsinvolvingcompleteinspection,forexample,ultrasonics,mustbeusedtolocatetheirpresence.Theexactnatureoftheexogenousmaterialcanthenbedeterminedbysectioningintothesuspectregionfollowedbyserial,step-wisegrindingtoexposetheexogenousmatterforidentificationandindividualmeasurement.Directsizemeasurementratherthanapplicationofstereologicalmethodsisemployed.Becausethecharacteristicsoftheindigenousinclusionpopulationvarywithinagivenlotofmaterialduetotheinfluenceofcompositionalfluctuations,solidificationconditionsandprocessing,thelotmustbesampledstatisticallytoassessitsinclusioncontent.Thelargestlotsampledistheheatlotbutsmallerlots,forexample,theproductofaningot,withintheheatmaybesampledasaseparatelot.Thesamplingofagivenlotmustbeadequateforthelotsizeandcharacteristics.Thepracticeissuitableforassessmentoftheindigenousinclusionsinanysteel(orothermetal)productregardlessofitssizeorshapeaslongasenoughdifferentfieldscanbemeasuredtoobtainreasonablestatisticalconfidenceinthedata.Becausethespecificsofthemanufactureoftheproductdoinfluencethemorphologicalcharacteristicsoftheinclusions,thereportshouldstatetherelevantmanufacturingdetails,thatis,dataregardingthedeformationhistoryoftheproduct.Tocomparetheinclusionmeasurementresultsfromdifferentlotsofthesameorsimilartypesofsteels,orothermetals,astandardsamplingschemeshouldbeadoptedsuchasdescribedinPracticeE45.Thetestmeasurementproceduresarebasedonthestatisticallyexactmathematicalrelationshipsofstereologyforplanarsurfacesthroughathree-dimensionalobjectexaminedusingreflectedlight(seeNote1).Theorientationofthesectioningplanerelativetothehot-workingaxisoftheproductwillinfluencetestresults.Ingeneral,alongitudinallyorientedtestspecimensurfaceisemployedinordertoassessthedegreeofelongationofthemalleable(thatis,deformable)inclusions.Oxideinclusionmeasurementsforcastmetals,orforwroughtsectionsthatarenotfullyconsolidated,maybebiasedbypartialorcompletedetectionoffineporosityormicroshrinkagecavitiesandarenotrecommended.Sulfidescanbediscriminatedfromsuchvoidsinmostinstancesandsuchmeasurementsmaybeperformed.Resultsofsuchmeasurementsmaybeusedtoqualifymaterialforshipmentaccordingtoagreeduponguidelinesbetweenpurchaserandmanufacturer,forcomparisonofdifferentmanufacturingprocessesorprocessvariations,ortoprovidedataforstructure-property-behaviorstudies.1.1Thispracticedescribesaprocedureforobtainingstereologicalmeasurementsthatdescribebasiccharacteristicsofthemorphologyofindigenousinclusionsinsteelsandothermetalsusingautomaticimageanalysis.Thepracticecanbeappliedtoprovidesuchdataforanydiscretesecondphase.Note18212;Stereologicalmeasurementmethodsareusedinthispracticetoassesstheaveragecharacteristicsofinclusionsorothersecond-phaseparticlesonalongitudinalplane-of-polish.Thisinformation,byitself,doesnotproduceathree-dimensionaldescriptionoftheseconstituentsinspaceasdeformationprocessescauserotationandalignmentoftheseconstituentsinapreferredmanner.Developmentofsuchinforma......
【中国标准分类号】:H26
【国际标准分类号】:77_040_99
【页数】:8P.;A4
【正文语种】:英语