BS EN 378-3-2008+A1-2012 制冷系统和加热泵.安全性和环境要求.安装现场和人员保护
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【英文标准名称】:Refrigeratingsystemsandheatpumps.Safetyandenvironmentalrequirements.InstallationsiteandpersonalprotectionICS
【原文标准名称】:制冷系统和加热泵.安全性和环境要求.安装现场和人员保护
【标准号】:BSEN378-3-2008+A1-2012
【标准状态】:现行
【国别】:英国
【发布日期】:2008-04-30
【实施或试行日期】:2008-04-30
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:事故预防;氨;分类;清洁处理;闭路的;冷藏室;燃料;压实工具;导(线)管;建筑工程;控制;冷却系统;防腐蚀;设计;检波器(回路);电气设备;电驱动装置;紧急停车;紧急断开;外壳;环境要求;装备;撤离;超压;爆炸危险;防火安全性;毒气警报;气体;热泵;指示;安装位置;装置;安装;敷设;液面;机房;维修;作标记;职业安全性;开口;操作;臭氧;管道;车间;污染控制;位置;压力;压力容器;保护(装置);人体保护;防护服装;泵;失效;制冷剂;制冷设备;制冷装置;制冷;安全性;安全性工程;安全性要求;截止阀;规范(验收);开关柜;温度;试验;阀门;通风;警报系统;水域;工作场所安全性
【英文主题词】:Accidentprevention;Ammonia;Classification;Cleaning;Closed;Coldrooms;Combustible;Compactors;Conduits;Constructions;Control;Coolingsystems;Corrosionprotection;Design;Detectors(circuits);Electricalequipment;Electrically-operateddevices;Emergencyshutdown;Emergency-off;Enclosures;Environmentalrequirements;Equipment;Evacuations;Excesspressures;Explosionhazard;Firesafety;Gasalarm;Gases;Heatpumps;Indications;Installationlocations;Installations;Laying;Liquidlevels;Machinerooms;Maintenance;Marking;Occupationalsafety;Openings;Operation;Ozone;Pipelines;Plant;Pollutioncontrol;Position;Pressure;Pressurevessels;Protection;Protectionofpersons;Protectiveclothing;Pumps;Putoutofaction;Refrigerants;Refrigeratingplant;Refrigeratingplants;Refrigeration;Safety;Safetyengineering;Safetyrequirements;Shut-offvalves;Specification(approval);Switchcabinets;Temperature;Testing;Valves;Ventilation;Warningsystem;Waters;Workplacesafety
【摘要】:
【中国标准分类号】:P45
【国际标准分类号】:27_080;27_200
【页数】:24P;A4
【正文语种】:英语
【英文标准名称】:StandardTestMethodsforLiquidLimit,PlasticLimit,andPlasticityIndexofSoils
【原文标准名称】:土壤的流限、塑限和塑性指数的标准试验方法
【标准号】:ASTMD4318-2010
【标准状态】:现行
【国别】:美国
【发布日期】:2010
【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】:D18.03
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:activity;Atterberglimits;liquidlimit;plasticityindex;plasticlimit;Atterberglimits;Liquidlimitofsoil;Plasticityindex;Plasticlimitofsoil;Soil
【摘要】:Thesetestmethodsareusedasanintegralpartofseveralengineeringclassificationsystemstocharacterizethefine-grainedfractionsofsoils(seePracticesD2487andD3282)andtospecifythefine-grainedfractionofconstructionmaterials(seeSpecificationD1241).Theliquidlimit,plasticlimit,andplasticityindexofsoilsarealsousedextensively,eitherindividuallyortogether,withothersoilpropertiestocorrelatewithengineeringbehaviorsuchascompressibility,hydraulicconductivity(permeability),compactibility,shrink-swell,andshearstrength.Theliquidandplasticlimitsofasoilanditswatercontentcanbeusedtoexpressitsrelativeconsistencyorliquidityindex.Inaddition,theplasticityindexandthepercentagefinerthan2-x03BC;mparticlesizecanbeusedtodetermineitsactivitynumber.Thesemethodsaresometimesusedtoevaluatetheweatheringcharacteristicsofclay-shalematerials.Whensubjectedtorepeatedwettinganddryingcycles,theliquidlimitsofthesematerialstendtoincrease.Theamountofincreaseisconsideredtobeameasureofashale''ssusceptibilitytoweathering.Theliquidlimitofasoilcontainingsubstantialamountsoforganicmatterdecreasesdramaticallywhenthesoilisoven-driedbeforetesting.Comparisonoftheliquidlimitofasamplebeforeandafteroven-dryingcanthereforebeusedasaqualitativemeasureoforganicmattercontentofasoil(seePracticeD2487.Note18212;Thequalityoftheresultproducedbythisstandardisdependentonthecompetenceofthepersonnelperformingitandthesuitabilityoftheequipmentandfacilitiesused.AgenciesthatmeetthecriteriaofPracticeD3740,generally,areconsideredcapableofcompetentandobjectivetesting/sampling/inspection/etc.UsersofthisstandardarecautionedthatcompliancewithPracticeD3740doesnotinitselfassurereliableresults.Reliableresultsdependonmanyfactors;PracticeD3740providesameansofevaluatingsomeofthosefactors.1.1Thesetestmethodscoverthedeterminationoftheliquidlimit,plasticlimit,andtheplasticityindexofsoilsasdefinedinSection3onTerminology.1.2Twomethodsforpreparingtestspecimensareprovidedasfollows:Wetpreparationmethod,asdescribedin10.1.Drypreparationmethod,asdescribedin10.2.Themethodtobeusedshallbespecifiedbytherequestingauthority.Ifnomethodisspecified,usethewetpreparationmethod.1.2.1Theliquidandplasticlimitsofmanysoilsthathavebeenallowedtodrybeforetestingmaybeconsiderablydifferentfromvaluesobtainedonnon-driedsamples.Iftheliquidandplasticlimitsofsoilsareusedtocorrelateorestimatetheengineeringbehaviorofsoilsintheirnaturalmoiststate,samplesshouldnotbepermittedtodrybeforetestingunlessdataondriedsamplesarespecificallydesired.1.3Twomethodsfordeterminingtheliquidlimitareprovidedasfollows:MethodA,MultipointtestasdescribedinSections11and12.MethodB,One-pointtestasd......
【中国标准分类号】:B10
【国际标准分类号】:93_020
【页数】:16P.;A4
【正文语种】:英语
【英文标准名称】:Aerospace-Airframeneedlerollerbearings,single-row,shielded-Inchseries
【原文标准名称】:航空航天飞机结构用带档边的单列滚针轴承英制系列
【标准号】:ISO13414-1997
【标准状态】:现行
【国别】:国际
【发布日期】:1997-12
【实施或试行日期】:
【发布单位】:国际标准化组织(ISO)
【起草单位】:ISO/TC20
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:ThisInternationalStandardspecifiesthecharacteristics,boundarydimensions,tolerances,internalclearancesandpermissiblestaticradialloadsofinchseries,single-row,needlerollerbearingsusedinairframeapplications.TheairframeneedlerollerbearingscoveredbythisInternationalStandardaredesignedtooperateinthetemperaturerange-54℃to+121℃.
【中国标准分类号】:V22
【国际标准分类号】:49_035
【页数】:5P;A4
【正文语种】:英语