1、Designation:D721522Standard Test Method forCalculated Flash Point from Simulated Distillation Analysisof Distillate Fuels1This standard is issued under the fixed designation D7215;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the y
2、ear 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.Scope*1.1 This test method covers the calculated flash pointformula,which represents a means for directly estimating theflash
3、 point temperature of distillate fuels from Test MethodD2887 data.The value computed from the equation is termedthe“calculated flash point.”The calculated flash point formulais applicable to diesel fuel samples based on a correlation toTest Method D93 over the range from 47 C to 99 C,and to jetfuel
4、samples based on a correlation to Test Method D56 andTest Method D3828 over the range from 35 C to 67 C.1.2 The calculated flash point formula is valid for diesel andjet fuels with an IBP between 90 C and 162 C(194 F and324 F),Test Method D2887 5%recovery temperature be-tween 136 C and 207 C(277 F a
5、nd 405 F),and TestMethod D2887 10%recovery temperature between 142 Cand 222 C(288 F and 432 F).For each flash point testmethod(Test Method D56,Test Method D93,and Test MethodD3828)a separate equation has been established.See 4.4 for adetailed overview of the simulated distillation IBP,5%,and10%range
6、s per equation.1.3 A calculated diagnostic parameter,not exceeding agiven threshold value,is a prerequisite for acceptance of thecalculated flash point.1.4 The diagnostic parameter MSPEX(Mean SummedPrediction Error)checks the sample compliance,based onreconstruction of TIBP,T5%,and T10%of the sample
7、,via acalculation procedure.A value for MSPEXnot exceeding thethreshold level of 1.9 C is a prerequisite for accepting thecalculated flash point,CFP.NOTE1It is important to note that calculated flash point results,at thistime,are not recognized by regulatory organizations in verifying confor-mance t
8、o applicable regulations.NOTE2The calculated flash point derived from simulated distillationdata depends upon the accuracy of determination of the IBP temperatureand the 5%and 10%recovery temperatures.NOTE3If the users specification requires a defined flash point testmethod other than this test meth
9、od,neither this test method nor any othertest method should be substituted for the prescribed test method withoutobtaining comparative data and an agreement from the specifier.1.5 The values stated in SI units are to be regarded as thestandard.1.5.1 ExceptionThe values given in parentheses are forin
10、formation only.1.6 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety,health,and environmental practices and deter-mine the applicability of regulatory limitations pr
11、ior to use.1.7 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalB
12、arriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2D56 Test Method for Flash Point by Tag Closed Cup TesterD93 Test Methods for Flash Point by Pensky-MartensClosed Cup TesterD975 Specification for Diesel FuelD1655 Specification for Aviation Turbine FuelsD2887 Test Method for Bo
13、iling Range Distribution of Pe-troleum Fractions by Gas ChromatographyD3828 Test Methods for Flash Point by Small Scale ClosedCup TesterD4175 Terminology Relating to Petroleum Products,LiquidFuels,and LubricantsD6708 Practice for Statistical Assessment and Improvementof Expected Agreement Between Tw
14、o Test Methods thatPurport to Measure the Same Property of a Material3.Terminology3.1 Definitions:1This test method is under the jurisdiction of ASTM Committee D02 onPetroleum Products,Liquid Fuels,and Lubricants and is the direct responsibility ofSubcommittee D02.04.0K on Correlative Methods.Curren
15、t edition approved Nov.1,2022.Published November 2022.Originallyapproved in 2008.Last previous edition approved in 2016 as D7215 16.DOI:10.1520/D7215-22.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStanda
16、rds volume information,refer to the standards Document Summary page onthe ASTM website.*A Summary of Changes section appears at the end of this standardCopyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recommendations issued
