ANSI/NSF 42(i66)-2009 饮用水处理装置.美学作用

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【英文标准名称】:StandardTestMethodforMaking,AcceleratedCuring,andTestingConcreteCompressionTestSpecimens
【原文标准名称】:混凝土压力试样的制作、快速养护和测试的标准试验方法
【标准号】:ASTMC684-1999(2003)
【标准状态】:现行
【国别】:
【发布日期】:1999
【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】:C09.61
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:发电;压力;施工材料;混凝土;试验;建筑;保用期服务;试样
【英文主题词】:acceleratedcuring;compressivestrength;testing
【摘要】:Theacceleratedcuringproceduresprovide,attheearliestpracticaltime,anindicationofthepotentialstrengthofaspecificconcretemixture.Theseproceduresalsoprovideinformationonthevariabilityoftheproductionprocessforuseinqualitycontrol.Theacceleratedearlystrengthobtainedfromanyoftheproceduresinthistestmethodcanbeusedtoevaluateconcretestrengthsinthesamewayconventional28-daystrengthshavebeenusedinthepast,withsuitablechangesintheexpectedstrengthvalues.Sincethepracticeofusingstrengthvaluesobtainedfromstandard-curedcylindersat28daysislongestablishedandwidespread,theresultsofacceleratedstrengthtestsareoftenusedtoestimatethelater-agestrengthunderstandardcuring.Suchestimatesshouldbelimitedtoconcretesusingthesamematerialsandmixtureproportionsasthoseusedforestablishingthecorrelation.AppendixX2providesaproceduretoestimatethe90%confidenceintervaloftheaveragelater-agestrengthbasedonacceleratedstrengthtestresults.Correlationbetweenacceleratedstrengthandstrengthachievedatsomelateragebyusingconventionalcuringmethodsdependsuponthematerialscomprisingtheconcrete,themixtureproportions,andthespecificacceleratedtestprocedure.Theusershallchoosewhichproceduretouseonthebasisofexperienceandlocalconditions.Theseprocedures,ingeneral,willbepracticalwhenafieldlaboratoryisavailabletohousethecuringcontainersandthetestingequipmenttomeasurecompressivestrengthwithinthespecifiedtimelimits.1.1Thistestmethodcoversfourproceduresformaking,curing,andtestingspecimensofconcretestoredunderconditionsintendedtoacceleratethedevelopmentofstrength.Thefourproceduresare:ProcedureA-WarmWaterMethod,ProcedureB-BoilingWaterMethod,ProcedureC-AutogenousCuringMethod,andProcedureD-HighTemperatureandPressureMethod.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Thevaluesgiveninparenthesesareprovidedforinformationpurposesonly.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.SeeSection9andNote9and14forspecificwarningsandprecautions.
【中国标准分类号】:Q13
【国际标准分类号】:91_100_30
【页数】:10P.;A4
【正文语种】:


【英文标准名称】:Repairofflatwoodenpallets(ISO18613:2003);GermanversionENISO18613:2003
【原文标准名称】:木制平托盘修理
【标准号】:DINENISO18613-2003
【标准状态】:现行
【国别】:德国
【发布日期】:2003-08
【实施或试行日期】:
【发布单位】:德国标准化学会(DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:材料;胶合板;测定;木基质产品;木料;木托盘;木材防腐;运输方法;规范;损伤;耐久性;特性;检修;定义;浅;平托盘;托盘;规范(验收);木制品;木材
【英文主题词】:
【摘要】:Thisstandardspecifiesthemaximumdefectsanddamageallowedbeforeaflatwoodenpalletshallberepaired,anddefinestheminimumrepaircriteriathatshallbeused.#,,#
【中国标准分类号】:A85
【国际标准分类号】:55_180_20
【页数】:18P;A4
【正文语种】:德语