ANSI/AWWA C508a-2012 2In.到24In.(50mm到600mm)NPS水厂设备用摆动止回阀

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【英文标准名称】:Swing-CheckValvesforWaterworksService,2-In.through24-In.(50-mmthrough600-mm)NPS
【原文标准名称】:2In.到24In.(50mm到600mm)NPS水厂设备用摆动止回阀
【标准号】:ANSI/AWWAC508a-2012
【标准状态】:现行
【国别】:美国
【发布日期】:2012
【实施或试行日期】:
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:ANSI
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:Checkvalves;Flanges;Valves;Watersupply;Watervalves
【摘要】:Describesonlyiron-body,nonassisted,swing-checkvalves,2-in.through24-in.(50-mmthrough600-mm)NPS,withmechanical-jointorflangedendsthatareinstalledinapproximatelylevelsettingsinwatersystems.Themanufacturershouldbeconsultedforspecialconditions.Checkvalvesizesdescribedinthisstandardare2-,21/2-,3-,4-,6-,8-,10-,12-,14-,16-,18-,20-,and24-in.(50-,65-,75-,100-,150-,200-,250-,300-,350-,400-,450-,500-,and600-mm)NPS.Sizesrefertothenominaldiameterofthewaterwaythroughtheinletandoutletconnectionsandtheseatring.
【中国标准分类号】:J16
【国际标准分类号】:23_060_01;93_025
【页数】:
【正文语种】:英语


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【英文标准名称】:StandardPracticeforDescriptionandIdentificationofSoils(Visual-ManualProcedure)
【原文标准名称】:土壤描述和鉴别的标准实施规程(目视-手工操作程序)
【标准号】:ASTMD2488-2006
【标准状态】:现行
【国别】:
【发布日期】:2006
【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】:D18.07
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:建筑;施工材料;描述;识别;工艺;土壤
【英文主题词】:classification;clay;gravel;organicsoils;sand;silt;soilclassification;soildescription;visualclassification
【摘要】:1.1Thispracticecoversproceduresforthedescriptionofsoilsforengineeringpurposes.1.2Thispracticealsodescribesaprocedureforidentifyingsoils,attheoptionoftheuser,basedontheclassificationsystemdescribedinTestMethodD2487.Theidentificationisbasedonvisualexaminationandmanualtests.Itmustbeclearlystatedinreportinganidentificationthatitisbasedonvisual-manualprocedures.1.2.1Whenpreciseclassificationofsoilsforengineeringpurposesisrequired,theproceduresprescribedinTestMethodD2487shallbeused.1.2.2Inthispractice,theidentificationportionassigningagroupsymbolandnameislimitedtosoilparticlessmallerthan3in.(75mm).1.2.3Theidentificationportionofthispracticeislimitedtonaturallyoccurringsoils(disturbedandundisturbed).Note1Thispracticemaybeusedasadescriptivesystemappliedtosuchmaterialsasshale,claystone,shells,crushedrock,etc.(see).1.3Thedescriptiveinformationinthispracticemaybeusedwithothersoilclassificationsystemsorformaterialsotherthannaturallyoccurringsoils.1.4Thevaluesstatedininch-poundunitsaretoberegardedasthestandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyproblems,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.ForspecificprecautionarystatementsseeSection8.1.6Thispracticeoffersasetofinstructionsforperformingoneormorespecificoperations.Thisdocumentcannotreplaceeducationorexperienceandshouldbeusedinconjunctionwithprofessionaljudgment.Notallaspectsofthispracticemaybeapplicableinallcircumstances.ThisASTMstandardisnotintendedtorepresentorreplacethestandardofcarebywhichtheadequacyofagivenprofessionalservicemustbejudged,norshouldthisdocumentbeappliedwithoutconsiderationofaproject'smanyuniqueaspects.Theword"Standard"inthetitleofthisdocumentmeansonlythatthedocumenthasbeenapprovedthroughtheASTMconsensusprocess.
【中国标准分类号】:P13
【国际标准分类号】:93_020
【页数】:11P.;A4
【正文语种】:


【英文标准名称】:Nanotechnologies-Vocabulary-Part1:Coreterms
【原文标准名称】:纳米技术.词表.第1部分:核心术语
【标准号】:IEC113/79/DTS-2010
【标准状态】:作废
【国别】:国际
【发布日期】:2010-01
【实施或试行日期】:
【发布单位】:国际电工委员会(IX-IEC)
【起草单位】:IEC/TC113
【标准类型】:()
【标准水平】:()
【中文主题词】:化学;定义;电气工程;电子工程;纳米管;纳米技术;术语;词汇
【英文主题词】:Chemistry;Definitions;Electricalengineering;Electronicengineering;Nanotubes;Nanotechnology;Terminology;Vocabulary
【摘要】:
【中国标准分类号】:G04
【国际标准分类号】:01_040_71;71_100_01
【页数】:
【正文语种】:英语