1、Designation:D6446 01(Reapproved 2006)Designation:355/98Standard Test Method forEstimation of Net Heat of Combustion(Specific Energy)ofAviation Fuels1This standard is issued under the fixed designation D6446;the number immediately following the designation indicates the year oforiginal adoption or,in
2、 the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This test method covers the estimation of the net heat ofcombustion(specific energy)at co
3、nstant pressure in SI units,megajoules per kilogram,from the fuel density,sulfur,andhydrogen content.1.2 This test method is purely empirical,and it is applicableonly to liquid hydrocarbon fuels derived by normal refiningprocesses from conventional crude oil that conform to therequirements of specif
4、ications for aviation turbine fuels oflimited boiling ranges and compositions,as described in Note1 and permitted by each specification.NOTE1The estimation of the heat of combustion of a hydrocarbonfuel from its hydrogen content,density,and sulfur is justifiable only whenthe fuel belongs to a well-d
5、efined class for which a relationship betweenthese quantities has been derived from accurate experimental measure-ments on representative samples of that class.Even in this class,thepossibility that the estimates can be in error by large amounts forindividual fuels should be recognized.The classes o
6、f fuels used toestablish the correclation presented in this test method are represented bythe following specifications:FuelSpecificationJP-5,Avcat/FSIIMIL-DTL-5624DEF STAN 91-86NATO Code F-44JP-8,Avtur/FSIIMIL-DTL-83133DEF STAN 9187NATO Code F-34Jet A,Jet A-1,AvturSpecification D1655DEF STAN 91-91NA
7、TO Code F-35CAN/CGSB-3.231.3 The heat of combustion can also be estimated by TestMethods D1405,D3338,and D4529.1.4 The values stated in SI units are to be regarded asstandard.No other units of measurement are included in thisstandard.2.Referenced Documents2.1 ASTM Standards:2D129 Test Method for Sul
8、fur in Petroleum Products(Gen-eral Bomb Method)D240 Test Method for Heat of Combustion of LiquidHydrocarbon Fuels by Bomb CalorimeterD1217 Test Method for Density and Relative Density(Spe-cific Gravity)of Liquids by Bingham PycnometerD1250 Guide for Use of the Petroleum Measurement TablesD1266 Test
9、Method for Sulfur in Petroleum Products(Lamp Method)D1298 Test Method for Density,Relative Density(SpecificGravity),or API Gravity of Crude Petroleum and LiquidPetroleum Products by Hydrometer MethodD1405 Test Method for Estimation of Net Heat of Combus-tion of Aviation FuelsD1552 Test Method for Su
10、lfur in Petroleum Products(High-Temperature Method)D1655 Specification for Aviation Turbine FuelsD2622 Test Method for Sulfur in Petroleum Products byWavelength Dispersive X-ray Fluorescence SpectrometryD3120 Test Method for Trace Quantities of Sulfur in LightLiquid Petroleum Hydrocarbons by Oxidati
11、ve Microcou-lometryD3338 Test Method for Estimation of Net Heat of Combus-tion of Aviation FuelsD3701 Test Method for Hydrogen Content of AviationTurbine Fuels by Low Resolution Nuclear Magnetic Reso-nance SpectrometryD4052 Test Method for Density and Relative Density ofLiquids by Digital Density Me
12、terD4294 Test Method for Sulfur in Petroleum and PetroleumProducts by Energy Dispersive X-ray Fluorescence Spec-trometryD4529 Test Method for Estimation of Net Heat of Combus-tion of Aviation Fuels1This test method is under the jurisdiction of ASTM Committee D02 onPetroleum Products and Lubricants a
13、nd is the direct responsibility of SubcommitteeD02.05 on Properties of Fuels,Petroleum Coke and Carbon Material.Current edition approved July 1,2006.Published August 2006.Originallyapproved in 1999.Last previous edition approved in 2001 as D644601.DOI:10.1520/D6446-01R06.2For referenced ASTM standar
14、ds,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.1Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-295
15、9,United States.D4808 Test Methods for Hydrogen Content of Light Distil-lates,Middle Distillates,Gas Oils,and Residua by Low-Resolution Nuclear Magnetic Resonance SpectroscopyD4809 Test Method for Heat of Combustion of LiquidHydrocarbon Fuels by Bomb Calorimeter(PrecisionMethod)D5291 Test Methods fo
16、r Instrumental Determination ofCarbon,Hydrogen,and Nitrogen in Petroleum Productsand LubricantsD5453 Test Method for Determination of Total Sulfur inLight Hydrocarbons,Spark Ignition Engine Fuel,DieselEngine Fuel,and Engine Oil by Ultraviolet Fluorescence2.2U.S.Military Standards:3MIL-DTL-5624 Aviation Turbine Fuel,Grades JP-4,JP-5,and JP-5/JP-8 STMIL-DTL-83133 Aviation Turbine Fuel,Kerosene Types,NATO F-34(JP-8),NATO F-35,and JP-8+1002.3Directorate of Standardization,Ministry of Defence:4DEF ST