1、Designation: D7719 16a An American National StandardStandard Specification forHigh Aromatic Content Unleaded Hydrocarbon AviationGasoline1This standard is issued under the fixed designation D7719; the number immediately following the designation indicates the year oforiginal adoption or, in the case
2、 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. Scope*1.1 This specification covers formulating specifications forpurchases of a high aromatic conten
3、t unleaded hydrocarbonaviation gasoline under contract and is intended solely for useby purchasing agencies.21.2 This specification defines a specific type of high aro-matic content unleaded hydrocarbon aviation gasoline (hereaf-ter also referred to as “D7719 fuel”) for use as an aviationspark-ignit
4、ion fuel. It does not include all fuels satisfactory forreciprocating aviation engines. Certain equipment or condi-tions of use may permit a wider, or require a narrower, range ofcharacteristics than is shown by this specification.1.3 The D7719 fuel defined by this specification does notexhibit iden
5、tical performance to those leaded fuels for whichthe existing aircraft and ground-based fuel handling equipmenthave been designed to operate on. Therefore, the suitability ofthis fuel for use on any specific aircraft, aircraft engine, orground-based fuel handling equipment should be evaluatedbefore
6、use on that equipment.1.4 Issuance of this specification does not constitute ap-proval to operate certificated aircraft with this fuel. Fuels usedin certified engines and aircraft are ultimately approved by thecertifying authority subsequent to formal submission of evi-dence to the authority as part
7、 of the certification program forthat aircraft and engine model.1.5 This specification, unless otherwise provided, prescribesthe required properties of unleaded fuel at the time and place ofdelivery.1.6 The values stated in SI units are to be regarded asstandard. No other units of measurement are in
8、cluded in thisstandard.1.7 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 and health practices and determine the applica-bility of regulatory limitations prior
9、 to use.2. Referenced Documents2.1 ASTM Standards:3D86 Test Method for Distillation of Petroleum Products andLiquid Fuels at Atmospheric PressureD130 Test Method for Corrosiveness to Copper from Petro-leum Products by Copper Strip TestD323 Test Method for Vapor Pressure of Petroleum Products(Reid Me
10、thod)D873 Test Method for Oxidation Stability of Aviation Fuels(Potential Residue Method)D909 Test Method for Supercharge Rating of Spark-IgnitionAviation GasolineD910 Specification for Leaded Aviation GasolinesD1094 Test Method for Water Reaction of Aviation FuelsD1266 Test Method for Sulfur in Pet
11、roleum Products (LampMethod)D1298 Test Method for Density, Relative Density, or APIGravity of Crude Petroleum and Liquid Petroleum Prod-ucts by Hydrometer MethodD2386 Test Method for Freezing Point of Aviation FuelsD2622 Test Method for Sulfur in Petroleum Products byWavelength Dispersive X-ray Fluo
12、rescence SpectrometryD2624 Test Methods for Electrical Conductivity of Aviationand Distillate FuelsD2700 Test Method for Motor Octane Number of Spark-Ignition Engine FuelD3237 Test Method for Lead in Gasoline byAtomicAbsorp-tion SpectroscopyD3606 Test Method for Determination of Benzene andToluene i
13、n Finished Motor and Aviation Gasoline by GasChromatography1This specification is under the jurisdiction of ASTM Committee D02 onPetroleum Products, Liquid Fuels, and Lubricants and is the direct responsibility ofSubcommittee D02.J0.02 on Spark and Compression Ignition Aviation EngineFuels.Current e
14、dition approved Dec. 1, 2016. Published January 2017. Originallyapproved in 2011. Last previous edition approved in 2016 as D7719 16. DOI:10.1520/D7719-16A.2Supporting data have been filed at ASTM International Headquarters and maybe obtained by requesting Research Report RR:D02-1721.3For referenced
15、 ASTM standards, 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.*A Summary of Changes section appears at the end of this standardCopyright A
16、STM 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 St
17、andards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.1D4052 Test Method for Density, Relative Density, and APIGravity of Liquids by Digital Density MeterD4057 Practice for Manual Sampling of Petroleum andPetroleum ProductsD4171 Specif
18、ication for Fuel System Icing InhibitorsD4177 Practice for Automatic Sampling of Petroleum andPetroleum ProductsD4306 Practice for Aviation Fuel Sample Containers forTests Affected by Trace ContaminationD4809 Test Method for Heat of Combustion of LiquidHydrocarbon Fuels by Bomb Calorimeter (Precisio
19、nMethod)D4814 Specification for Automotive Spark-Ignition EngineFuelD4865 Guide for Generation and Dissipation of Static Elec-tricity in Petroleum Fuel SystemsD5006 Test Method for Measurement of Fuel System IcingInhibitors (Ether Type) in Aviation FuelsD5059 Test Methods for Lead in Gasoline by X-R
20、ay Spec-troscopyD5191 Test Method for Vapor Pressure of Petroleum Prod-ucts (Mini Method)D5580 Test Method for Determination of Benzene, Toluene,Ethylbenzene, p/m-Xylene, o-Xylene, C9and HeavierAromatics, and Total Aromatics in Finished Gasoline byGas ChromatographyD6469 Guide for Microbial Contamin
21、ation in Fuels and FuelSystemsD6733 Test Method for Determination of Individual Com-ponents in Spark Ignition Engine Fuels by 50-MetreCapillary High Resolution Gas ChromatographyD7826 Guide for Evaluation of New Aviation Gasolines andNew Aviation Gasoline AdditivesE29 Practice for Using Significant
22、Digits in Test Data toDetermine Conformance with Specifications3. Terminology3.1 Definitions:3.1.1 binary, adjcharacterized by, or consisting of, twocomponents.3.1.2 biomass, nbiological material including any mate-rial other than fossil fuels which is or was a living organism orcomponent or product
23、 of a living organism.3.1.3 non-hydrocarbon, ncompound or compounds com-posed of carbon, hydrogen, and other elements such as oxygen,nitrogen, sulfur, and phosphorus.3.1.4 unleaded hydrocarbon aviation gasoline, ngasolineintended for use in aircraft powered by reciprocating spark-ignition engines, w
24、here lead and lead-containing compoundsare not intentionally added for the purpose of enhancing octaneperformance and which excludes non-hydrocarbons, except foradditives approved in this specification.4. General4.1 This specification, unless otherwise provided, prescribesthe required properties of
25、a high aromatic content unleadedhydrocarbon aviation gasoline at the time and place of delivery.5. Classification5.1 One grade of high aromatic content unleaded hydrocar-bon aviation gasoline is provided, known as UL102.6. Materials and Manufacture6.1 D7719 fuel, except as otherwise specified in thi
26、sspecification, shall consist of blends of refined hydrocarbons.The sources for these hydrocarbons include biomass, naturalgas, or crude petroleum.6.1.1 See Appendix X1 for one particular composition thatmeets the parameters of Table 1.6.2 AdditivesThese can be added to each grade of D7719fuel in th
27、e amount, and of the composition, specified in thefollowing list of approved materials:6.2.1 DyesThe total maximum concentration of dye in thefuel is 6.0 mg/L. (See X1.1.1 and X2.2.7.)6.2.1.1 The only blue dye present in the finished fuel shallbe essentially 1,4-dialkylaminoanthraquinone.6.2.1.2 The
28、 only yellow dyes in the finished fuel shall beessentially p-diethylaminoazobenzene (Color Index No.11021) or 1,3-benzenediol 2,4-bis (alkylphenyl)azo-.6.2.1.3 The only red dye present in the finished fuel shall beessentially alkyl derivatives of azobenzene-4-azo-2-naphthol.6.2.1.4 The only orange d
29、ye present in the finished fuel shallbe essentially benzene-azo-2-napthol (Color Index No. 12055).6.2.2 Other AdditivesThese may be added in the amountand of the composition specified in the following list ofapproved materials. The quantities and types shall be declaredby the manufacturer. Additives
30、 added after the point ofmanufacture shall also be declared.6.2.2.1 AntioxidantsThe following oxidation inhibitorsmay be added to the fuel separately, or in combination, in totalconcentration not to exceed 12 mg of inhibitor (not includingweight of solvent) per litre of fuel.(1) 2,6-ditertiary butyl
31、-4-methylphenol.(2) 2,4-dimethyl-6-tertiary butylphenol.(3) 2,6-ditertiary butylphenol.(4) 75 % minimum 2,6-ditertiary butylphenol plus 25 %maximum mixed tertiary and tritertiary butylphenols.(5) 75 % minimum di- and tri-isopropyl phenols plus 25 %maximum di- and tri-tertiary butylphenols.(6) 72 % m
32、inimum 2,4-dimethyl-6-tertiary butylphenolplus 28 % maximum monomethyl and dimethyl tertiary butyl-phenols.(7) N,N-di-isopropyl-para-phenylenediamine.(8) N,N-di-secondary-butyl-para-phenylenediamine.D7719 16a26.2.2.2 Fuel System Icing Inhibitor (FSII)One of thefollowing materials may be used:(1) Iso
33、propyl Alcohol (IPA, propan-2-ol), in accordancewith the requirements of Specification D4171 (Type II). Maybe used in concentrations recommended by the aircraft manu-facturer when required by the aircraft owner/operator.(2) Di-Ethylene Glycol Monomethyl Ether (Di-EGME),conforming to the requirements
34、 of Specification D4171 (TypeIII). May be used in concentrations of 0.10 to 0.15 volume %when required by the aircraft owner/operator.(3) Test Method D5006 can be used to determine theconcentration of Di-EGME in aviation fuels.NOTE 1Addition of isopropyl alcohol (IPA) may reduce knock ratingsbelow m
35、inimum specification values. See X2.2.3.6.2.2.3 Electrical Conductivity AdditiveStadis 450 in con-centrations up to 3 mg/L is permitted. When loss of fuelconductivity necessitates retreatment with electrical conductiv-ity additive, further addition is permissibleTABLE 1 Detailed Requirements for Hig
36、h Aromatic Content Unleaded Hydrocarbon Aviation GasolineAGrade UL102 ASTM Test MethodBPropertyCOMBUSTIONOctane Rating min 102.2 D2700Knock value, Motor Octane NumberCNet heat of combustion, MJ/kg min 41.5 D4809COMPOSITIONSulfur, mass % max 0.05 D1266 or D2622Tetraethyl Lead, g Pb/L max 0.013 D3237
37、or D5059Total Aromatics, % (m/m)min70D6733Benzene, % (m/m) max 0.1 D3606Dor D5580Requirements for All GradesVOLATILITYVapor pressure, 37.8 C, kPa min 38.0D323 or D5191Emax 49.0Density at 15 C, kg/m3min 790D1298 or D4052max 825Distillation D86Initial boiling point, C Report D86Fuel Evaporated D8610 v
38、olume % at C max 75 D8640 volume % at C min 75 D8650 volume % at C max 165 D8690 volume % at C max 165 D86Final boiling point, C max 180 D86Sumof10%+50%evaporated temperatures, C min 135 D86Recovery, volume % min 97 D86Residue, volume % max 1.5 D86Loss, volume % max 1.5 D86FLUIDITYFreezing point, C
39、max 58FD2386CORROSIONCopper strip, 2 h at 100 C max No. 1 D130CONTAMINANTSOxidation stability (5 h aging)GD873Potential gum, mg/100 mL max 6Water reactionD1094Volume change, mL max 2OTHERElectrical conductivity, pS/m max 450HD2624AFor compliance of test results against the requirements of Table 1, s
40、ee 7.2.BThe test methods indicated in this table are referred to in Section 11.CKnock ratings shall be reported to the nearest 0.1 octane number.DIn case of dispute, Test Method D3606 shall be used as the referee method.ETest Method D5191 shall be the referee vapor pressure method.FIf no crystals ha
41、ve appeared on cooling to 58 C, the freezing point may be reported as less than 58 C.GIf mutually agreed upon between the purchaser and the supplier, a 16 h aging gum requirement may be specified instead of the 5 h aging gum test; in such case thegum content shall not exceed 10 mg 100 mL. In such fu
42、el the permissible antioxidant shall not exceed 24 mg L.HApplies only when an electrical conductivity additive is used; when a customer specifies fuel containing conductivity additive, the following conductivity limits shall applyunder the condition at point of use:Minimum 50 pS mMaximum 450 pS m.Th
43、e supplier shall report the amount of additive added.D7719 16a36.2.2.4 Corrosion Inhibitor AdditiveThe following corro-sion inhibitors may be added to the fuel in concentrations notto exceed the maximum allowable concentration (MAC) listedfor each additive.DCI-4A MAC = 24.0 g/m3DCI-6A MAC = 15.0 g/m
44、3HITEC 580 MAC = 22.5 g/m3NALCO 5403 MAC = 22.5 g/m3NALCO 5405 MAC = 11.0 g/m3UNICOR J MAC = 22.5 g/m3SPEC-AID 8Q22 MAC = 24.0 g/m3TOLAD 351 MAC = 24.0 g/m3TOLAD 4410 MAC = 22.5 g/m37. Detailed Requirements7.1 The D7719 fuel shall conform to the requirementsprescribed in Table 1.7.2 Test results sha
45、ll not exceed the maximum or be lessthan the minimum values specified in Table 1. No allowanceshall be made for the precision of the test methods. Todetermine the conformance to the specification requirement, atest result may be rounded to the same number of significantfigures as in Table 1 using Pr
46、actice E29. Where multipledeterminations are made, the average result, rounded accordingto Practice E29, shall be used.8. Workmanship, Finish, and Appearance8.1 The D7719 fuel specified in this specification shall befree from undissolved water, sediment, and suspended matter.No substances of known d
47、angerous toxicity, under usualconditions of handling and use, shall be present except aspermitted in this specification.9. Sampling9.1 Because of the importance of proper sampling proce-dures in establishing fuel quality, use the appropriate proce-dures in Practice D4057 or Practice D4177.9.1.1 Alth
48、ough automatic sampling following PracticeD4177 may be useful in certain situations, initial manufacturer/supplier specification compliance testing shall be performed ona sample taken following procedures in Practice D4057.9.2 A number of D7719 fuel properties, including coppercorrosion, electrical
49、conductivity, and others are very sensitiveto trace contamination which can originate from samplecontainers. For recommended sample containers, refer toPractice D4306.10. Reports10.1 The type and number of reports to ensure conformancewith the requirements of this specification shall be mutuallyagreed to by the purchaser and the supplier of the D7719 fuel.11. Test Methods11.1 The requirements enumerated in this specification shallbe determined in accordance with the following ASTM testmethods:411.1.1 Knock Value (Motor Octane Number)Test Metho
