【英文标准名称】:StandardTestMethodforSpecificGravityofOilsandLiquidFats
【原文标准名称】:油和液体脂肪比重的标准测试方法
【标准号】:ASTMD5355-1995
【标准状态】:现行
【国别】:美国
【发布日期】:1995
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:ASTM
【标准类型】:()
【标准水平】:()
【中文主题词】:油;密度测量;脂肪;试验
【英文主题词】:oils;fats;densitymeasurement;testing
【摘要】:
【中国标准分类号】:E30
【国际标准分类号】:75_080
【页数】:2P;A4
【正文语种】:英语


【英文标准名称】:Electricalapparatusforuseinthepresenceofcombustibledust-Part1:Protectionbyenclosures"tD"
【原文标准名称】:有可燃性粉尘场合用电气设备.外壳防护"tD"型
【标准号】:BSEN61241-1-2004
【标准状态】:作废
【国别】:英国
【发布日期】:2005-01-13
【实施或试行日期】:2005-01-13
【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】:电气工程;安全措施;规范(验收);灰尘的;旋转电机;灰尘爆炸;燃料;合格试验;防爆;座孔;插头;易燃性;TD型保护电气设备;开关设备;试验;定义;设计;保护措施;易燃材料;容器密封;防尘罩;温度极限;选择;保护形式;外壳;爆炸性环境;可燃性环境;爆炸危险;熔断器;防尘密封;电驱动装置;灯具;保护设备;安装;电气安全;防护等级;试样;尘埃;测量仪器;分类系统;点火防护装置;电气外壳;防火安全;表面温度;电气设备
【英文主题词】:Casetightness;Classificationsystems;Combustible;Definitions;Degreesofprotection;Deposit;Design;Dust;Dustexplosions;Dustguards;Dusttight;Dusty;Electricappliances;Electricenclosures;Electricalengineering;Electricalequipment;Electricalsafety;Electrically-operateddevices;Enclosures;Erection;Explosionhazard;Explosionprotection;Explosiveatmospheres;Firesafety;Flammableatmospheres;Flammablematerials;Fuses;Ignitionprotection;Inflammable;Luminaires;Measuringinstruments;Multilingual;Plugs;Protectiondevices;Protectivemeasures;Qualificationtests;Rotatingelectricmachines;Safetymeasures;Samples;Selection;Sockets;Specification(approval);Surfacetemperatures;Switchgear;Temperaturelimits;Testing;Typeofprotection;TypetDprotectedelectricalequipment
【摘要】:ThispartofIEC61241isapplicabletoelectricalapparatusprotectedbyenclosuresandsurfacetemperaturelimitationforuseinareaswherecombustibledustmaybepresentinquantitieswhichcouldleadtoafireorexplosionhazard.Itspecifiesrequirementsfordesign,constructionandtestingofelectricalapparatus.ThisstandardsupplementsthegeneralrequirementsinIEC61241-0.NOTEIEC61241-14givesguidanceontheselectionandinstallationoftheapparatus.Apparatuswithinthescopeofthisstandardmayalsobesubjectedtoadditionalrequirementsinotherstandards–forexample,IEC60079-0.Theignitionprotectionisbasedonthelimitationofthemaximumsurfacetemperatureoftheenclosureandonothersurfaceswhichcouldbeincontactwithdustandontherestrictionofdustingressintotheenclosurebytheuseof"dust-tight"or"dust-protected"enclosures.Theapplicationofelectricalapparatusinatmosphereswhichmaycontainexplosivegasaswellascombustibledust,whethersimultaneouslyorseparately,requiresadditionalprotectivemeasures.Wheretheapparatushastomeetotherenvironmentalconditions,forexample,protectionagainstingressofwaterandresistancetocorrosion,additionalmethodsofprotectionmaybenecessary.Themethodusedshouldnotadverselyaffecttheintegrityoftheenclosure.Thisstandarddoesnotapplytodustsofexplosiveswhichdonotrequireatmosphericoxygenforcombustion,ortopyrophoricsubstances.Thisstandardisnotapplicabletoelectricalapparatusintendedforuseinundergroundpartsofminesaswellasthosepartsofsurfaceinstallationsofsuchminesendangeredbyfiredampand/orcombustibledust.Thisstandarddoesnottakeaccountofanyriskduetoanemissionofflammableortoxicgasfromthedust.
【中国标准分类号】:K35
【国际标准分类号】:29_260_20
【页数】:18P.;A4
【正文语种】:英语