NF L24-145-2009 航空航天系列.具有粗糙公差标准柄的铝IVD涂覆的耐热镍基合金标准六角头螺钉.类别:1250MPa(在环境温度下)/425oC

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【英文标准名称】:Aerospaceseries-Bolts,normalhexagonalhead,coarsetolerancenormalshank,longthread,inheatresistingnickelbasealloy,aluminiumIVDcoated-Classification:1250MPa(atambienttemperature)/425oC.
【原文标准名称】:航空航天系列.具有粗糙公差标准柄的铝IVD涂覆的耐热镍基合金标准六角头螺钉.类别:1250MPa(在环境温度下)/425oC
【标准号】:NFL24-145-2009
【标准状态】:现行
【国别】:法国
【发布日期】:2009-11-01
【实施或试行日期】:2009-11-07
【发布单位】:法国标准化协会(FR-AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:航空航天运输;航空运输;铝;涂覆的;覆层;设计;名称与符号;尺寸;紧固件;六角头螺钉;高温;处理;多语种的;镍合金;镍基合金;螺钉;航天运输;规范(验收);公差(测量)
【英文主题词】:Aerospacetransport;Airtransport;Aluminium;Coated;Coatings;Design;Designations;Dimensions;Fasteners;Hexagonheadscrews;Hightemperature;Marking;Multilingual;Nickelalloys;Nickelbasealloys;Screws(bolts);Spacetransport;Specification(approval);Tolerances(measurement)
【摘要】:
【中国标准分类号】:V20
【国际标准分类号】:49_030_20
【页数】:20P;A4
【正文语种】:其他


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MIL-PRF-32030 (NOTICE 1), PERFORMANCE SPECIFICATION: DIGITAL BATHYMETRIC DATA BASE ? VARIABLE RESOLUTION (DBDB-V) (31 MAR 2004)., The purpose of this notice is to inform users of the change in name of the preparing activity from the National Imagery and Mapping Agency (NIMA) to the National Geospatial-Intelligence Agency (NGA), effective 24 October 2003.【英文标准名称】:StandardTestMethodforAverageVelocityinaDuctUsingaThermalAnemometer
【原文标准名称】:热风风速计测量导管中平均速率的标准试验方法
【标准号】:ASTMD3464-1996(2007)
【标准状态】:现行
【国别】:
【发布日期】:1996
【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】:D22.03
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:速度;保健;职业安全;空气;分析;风速计;试验;运河
【英文主题词】:airvelocity;anemometer;atmospheres;gasvelocity;hotwireanemometer;measurements;pitottube;thermalanemometer
【摘要】:Themethodpresentedisax201C;shortmethodx201D;thatmaybeusedwherecontaminationlevelsarelessthan5000ppmbyweightorvolume,temperaturesarebetween0x00B0;C(32x00B0;F)and65x00B0;C(150x00B0;F),andthehumidityisnotconsidered.Thegasisconsideredasstandardairandthevelocityisreaddirectlyfromtheinstrument.ThistestmethodisusefulfordeterminingairvelocitiesinHVACducts,fumehoods,ventstacksofnuclearpowerstations,andinperformingmodelstudiesofpollutioncontroldevices.1.1Thistestmethoddescribesthemeasurementoftheaveragevelocitywithathermalanemometerforthepurposeofdetermininggasflowinastack,duct,orflue(1-5).Itislimitedtothoseapplicationswherethegasisessentiallyairatambientconditionsandthetemperature,moisture,andcontaminantloadingareinsignificantassourcesoferrorcomparedtothebasicaccuracyofthetypicalfieldsituation.1.2Therangeofthetestmethodisfrom1to30m/s(3to100ft/s).1.3ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:N13
【国际标准分类号】:17_120_10
【页数】:4P.;A4
【正文语种】: