MIL-STD-1515A
时间:2024-05-18 18:10:14 来源: 标准资料网 作者：标准资料网 阅读：8711
MIL-STD-1515A, MILITARY STANDARD: FASTENER SYSTEMS FOR AEROSPACE APPLICATIONS (12 JUL 1978) [S/S BY NASM1515]., This standard covers the methods of fastening, materials, finishes, test methods, and hole size and criteria of fasteners and fastening systems used in the design and construction of aerospace systems. In addition, it provides a comprehensive presentation of approved engineering practices, procedures, processes, and characteristics for fasteners.
【英文标准名称】:Naturalgas-Measurementofproperties-Volumetricproperties:density,pressure,temperatureandcompressionfactor
【原文标准名称】:天然气.参数测量.容积参数:密度、压力、温度和压缩因子
【标准号】:ISO15970-2008
【标准状态】:现行
【国别】:国际
【发布日期】:2008-06-15
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/TC193
【标准类型】:()
【标准水平】:()
【中文主题词】:分析;校正;校正气体;热值;压缩性;压缩比;定义;密度;气体分析;气体;材料测试;测量;测量技术;天然气;使用条件;性能;物理性能;精密度;压力;压力测量(流体);规范(验收);温度;温度测量;试验气体;测试;证实;容积;容积分析
【英文主题词】:Analysis;Calibration;Calibrationgases;Calorificvalue;Calorificvalues;Compressibility;Compressionratios;Definition;Definitions;Density;Gasanalysis;Gases;Materialstesting;Measurement;Measuringtechniques;Naturalgas;Operatingconditions;Performance;Physicalproperties;Precision;Pressure;Pressuremeasurement(fluids);Properties;Specification(approval);Temperature;Temperaturemeasurement;Testgases;Testing;Validation;Volumetric;Volumetricanalysis
【摘要】:ThisinternationalStandardgivesrequirementsandproceduresforthemeasurementofthepropertiesofnaturalgasthatareusedmainlyforvolumecalculationandvolumeconversion:densityatreferenceandatoperatingconditions,pressure,temperatureandcompressionfactor.Onlythosemethodsandinstrumentsareconsideredthataresuitableforfieldoperationundertheconditionsofnaturalgastransmissionanddistribution,installedeitherin-lineoron-line,andthatdonotinvolvethedeterminationofthegascomposition.ThisInternationalStandardgivesexamplesforcurrentlyusedinstrumentsthatareavailablecommerciallyandofinteresttothenaturalgasindustry.NOTEAttentionisdrawntorequirementsforapprovalofnationalauthorizationagenciesandtonationallegalregulationsfortheuseofthesedevicesforcommercialorofficialtradepurposes.Thedensityatreferenceconditions(sometimesreferredtoasnormal,standardorevenbasedensity)isrequiredforconversionofvolumedataandcanbeusedforotherphysicalproperties.Densityatoperatingconditionsismeasuredformass-flowmeasurementandvolumeconversionusingtheobservedlinedensityandcanbeusedforotherphysicalproperties.ThisInternationalStandardcoversdensitytransducersbasedonvibratingelements,normallysuitableformeasuringrangesof5kg/m3to250kg/m3.Pressuremeasurementdealswithdifferential,gaugeandabsolutepressuretransmitters.Itconsidersbothanalogueandsmarttransmitters(i.e.microprocessorbasedinstruments)and,ifnotspecifiedotherwise,thecorrespondingparagraphsrefertodifferential,absoluteandgaugepressuretransmitterswithoutdistinction.Temperaturemeasurementsinnaturalgasareperformedwithintherangeofconditionsunderwhichtransmissionanddistributionarenormallycarriedout(253K<7'【英文标准名称】:StandardfortheInstallationofLightningProtectionSystems
【原文标准名称】:雷电保护系统的安装标准
【标准号】:ANSI/NFPA780-2007
【标准状态】:现行
【国别】:美国
【发布日期】:2008
【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】:安装说明;雷电保护系统;安全工程;安全要求
【英文主题词】:Instructionsofinstallation;Lightningprotectionsystems;Safetyengineering;Safetyrequirements
【摘要】:Thisdocumentshallcovertraditionallightningprotectionsysteminstallationrequirementsforthefollowing:(1)Ordinarystructures(2)Miscellaneousstructuresandspecialoccupancies(3)Heavy-dutystacks(4)Watercraft(5)Structurescontainingflammablevapors,flammablegases,orliquidsthatgiveoffflammablevapors.Thisdocumentshallnotcoverlightningprotectionsysteminstallationrequirementsforthefollowing:(1)Explosivesmanufacturingbuildingsandmagazines(2)Electricgenerating,transmission,anddistributionsystems.Thisdocumentshallnotcoverlightningprotectionsysteminstallationrequirementsforearlystreameremissionsystemsorchargedissipationsystems.
【中国标准分类号】:K49
【国际标准分类号】:13_220_20;91_120_40
【页数】:
【正文语种】:英语