【英文标准名称】:StandardTestMethodsforDensityofGranularLooseFillInsulations
【原文标准名称】:粒状疏松的填充隔热材料密度的标准试验方法
【标准号】:ASTMC520-2004(2010)
【标准状态】:现行
【国别】:
【发布日期】:2004
【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】:C16.32
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:松散材料密度;密度;设计密度;粒状疏松的填充;绝缘;珍珠岩;隔热;蛭石;体积损失
【英文主题词】:bulkdensity;density;designdensity;granularloosefill;insulation;perlite;thermalinsulation;vermiculite;volumeloss
【摘要】:MethodAwillbeusedprimarilyasamanufacturingqualitycontrolandfieldtestmethodwithouttheneedforconditioning.Formoreaccurateresearchpurposes,conditioningshallbespecified.MethodBwillbeused,whenspecified,todeterminethedensityatwhichinsulationpropertiessuchasthermalresistanceandplacementcoveragearetobedetermined.1.1Thesetestmethodsareapplicabletogranularloosefillinsulationmaterialssuchasvermiculiteandperlite.Theyareusedforotherinsulationmaterialswithsimilarflowandsettlingproperties.1.2MethodAshallbeusedtodeterminebulkdensity.1.3MethodBshallbeusedtodeterminedesigndensityand,withMethodA,isusedtocalculatepercentlossofvolumeduetosettling.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Q25
【国际标准分类号】:91_100_60
【页数】:3P.;A4
【正文语种】:


【英文标准名称】:Softwareengineering-Productquality-Part2:Externalmetrics
【原文标准名称】:软件工程.产品质量.第2部分:外部度量标准
【标准号】:ISO/IECTR9126-2-2003
【标准状态】:现行
【国别】:国际
【发布日期】:2003-07
【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/IECJTC1
【标准类型】:()
【标准水平】:()
【中文主题词】:评定;特性;特性;信息处理;定义;数据处理;可靠度;软件;工作特性;度量;信息技术;计算机软件;导则;计算机;质量;计算机程序
【英文主题词】:Characteristics;Computerprograms;Computersoftware;Computers;Dataprocessing;Definitions;Evaluations;Guidelines;Informationprocessing;Informationtechnology;Metric;Performancecharacteristics;Properties;Quality;Reliability;Software
【摘要】:ThisTechnicalReportdefinesexternalmetricsforquantitativelymeasuringexternalsoftwarequalityintermsofcharacteristicsandsubcharacteristicsdefinedinISO/IEC9126-1,andisintendedtobeusedtogetherwithISO/IEC9126-1.ThisTechnicalReportcontains:Ⅰ.anexplanationofhowtoapplysoftwarequalitymetricsⅡ.abasicsetofmetricsforeachsubcharacteristicⅢ.anexampleofhowtoapplymetricsduringthesoftwareproductlifecycleThisTechnicalReportdoesnotassignrangesofvaluesofthesemetricstoratedlevelsortogradesofcompliance,becausethesevaluesaredefinedforeachsoftwareproductorapartofthesoftwareproduct,byitsnature,dependingonsuchfactorsascategoryofthesoftware,integritylevelandusers'needs.Someattributesmayhaveadesirablerangeofvalues,whichdoesnotdependonspecificuserneedsbutdependsongenericfactors;forexample,humancognitivefactors.ThisTechnicalReportcanbeappliedtoanykindofsoftwareforanyapplication.UsersofthisTechnicalReportcanselectormodifyandapplymetricsandmeasuresfromthisTechnicalReportormaydefineapplication-specificmetricsfortheirindividualapplicationdomain.Forexample,thespecificmeasurementofqualitycharacteristicssuchassafetyorsecuritymaybefoundinInternationalStandardsorTechnicalReportsprovidedbyIEC65andISO/IECJTC1/SC27.IntendedusersofthisTechnicalReportinclude:—Acquirer(anindividualororganizationthatacquiresorprocuresasystem,softwareproductorsoftwareservicefromasupplier);—Evaluator(anindividualororganizationthatperformsanevaluation.Anevaluatormay,forexample,beatestinglaboratory,thequalitydepartmentofasoftwaredevelopmentorganization,agovernmentorganizationorauser);—Developer(anindividualororganizationthatperformsdevelopmentactivities,includingrequirementsanalysis,design,andtestingthroughacceptanceduringthesoftwarelifecycleprocess);—Maintainer(anindividualororganizationthatperformsmaintenanceactivities);—Supplier(anindividualororganizationthatentersintoacontractwiththeacquirerforthesupplyofasystem,softwareproductorsoftwareserviceunderthetermsofthecontract)whenvalidatingsoftwarequalityatqualificationtest;—User(anindividualororganizationthatusesthesoftwareproducttoperformaspecificfunction)whenevaluatingqualityofsoftwareproductatacceptancetest;—Qualitymanager(anindividualororganizationthatperformsasystematicexaminationofthesoftwareproductorsoftwareservices)whenevaluatingsoftwarequalityaspartofqualityassuranceandqualitycontrol.
【中国标准分类号】:L77
【国际标准分类号】:35_080
【页数】:86P;A4
【正文语种】:英语