【英文标准名称】:StandardSpecificationforPrecastAutoclavedAeratedConcrete(AAC)WallConstructionUnits
【原文标准名称】:预制增压加气混凝土墙(PAAC)建筑部件的标准规范
【标准号】:ASTMC1386-2007
【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】:C27.60
【标准类型】:(Specification)
【标准水平】:()
【中文主题词】:加气混凝土;抗压强度;密度;含水量;预制混凝土部件;预制墙板;收缩
【英文主题词】:AAC;compressivestrength;density;moisturecontent;precastautoclavedaeratedconcrete;shrinkage
【摘要】:1.1Thisspecificationcoverssolidnonload-bearingandload-bearingprecastconcretewallunitsmadefromautoclavedaeratedconcrete.Precastautoclavedaeratedconcrete(AAC)isacementitiousproductbasedoncalciumsilicatehydratesinwhichlowdensityisattainedbytheinclusionofanagentresultinginmacroscopicvoidsandissubjectedtohigh-pressuresteamcuring.Theprecastautoclavedaeratedconcretewallunitsarelarge-sizesolidrectangularprisms,whicharetobelaidusingthin-bedmortar.InstalledunitscoveredbythisspecificationshallbeprotectedagainstdirectexposuretomoistureusingacoatingmaterialacceptedbytheAACmanufacturer.1.2Therawmaterialsusedintheproductionofprecastautoclavedaeratedconcreteareportlandcement,quartzsand,water,lime,gypsumoranhydrite,andanagentresultinginmacroscopicvoids.Thequartzsandusedasarawmaterialmaybereplacedbyasiliceousfineaggregateotherthansand,andusuallyisgroundtoafinepowderbeforeuse.Flyashmaybeusedasasandreplacement.Thebatchedrawmaterialsaremixedthoroughlytogethertoformaslurry.Theslurryiscastintosteelmolds.Duetothechemicalreactionsthattakeplacewithintheslurry,thevolumeexpands.Aftersetting,andbeforehardening,themassismachinecutintounitsofvarioussizes.Theunitsthenaresteam-curedunderpressureinautoclaveswherethematerialistransformedintoahardcalciumsilicate.1.3Thevaluesstatedininch-poundunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.SeeSection8,Section9,andSection10.
【中国标准分类号】:Q72
【国际标准分类号】:91_100_30
【页数】:4P.;A4
【正文语种】:


【英文标准名称】:Medicalelectricalequipment-Part1:Generalrequirementsforsafety-3.Collateralstandard:GeneralrequirementsforradiationprotectionindiagnosticX-rayequipment
【原文标准名称】:医用电气设备第1部分:安全通用要求第3节:并列标准:诊断X射线设备辐射防护通用要求
【标准号】:IEC60601-1-3-1994
【标准状态】:作废
【国别】:国际
【发布日期】:1994-07
【实施或试行日期】:
【发布单位】:国际电工委员会(IEC)
【起草单位】:IEC/SC62B
【标准类型】:()
【标准水平】:()
【中文主题词】:电医学;电气工程;安全;安全要求;诊断设备;辐射防护;X射线设备;医疗设备
【英文主题词】:Accidentprevention;Definition;Definitions;Determinations;Diagnosis;Diagnosticequipment;Electricappliances;Electricalappliances;Electricalengineering;Electromedicine;Equipment;Graphicsymbols;Ionizingradiation;Letterings;Marking;Measurement;Medicalequipment;Medicalradiography;Medicalsciences;Radiation;Radiationprotection;Radiology;Safety;Safetydevices;Safetyengineering;Safetyrequirements;Specification(approval);Symbols;Testing;X-rayapparatus;X-rayequipment;X-rays
【摘要】:DescribessafetyrequirementsconcerningradiationprotectivemeasurestobetakenbythemanufacturerinthedesignandconstructionofmedicaldiagnosticX-rayequipmentanditssubassemblies.TheyrelatetotheapplicationoftheX-radiationgenerated
【中国标准分类号】:C43
【国际标准分类号】:11_040_50;13_280
【页数】:99P.;A4
【正文语种】:英语