1、Designation: D7719 14d 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 unleaded D7719 fuel defined by this specificationdoes not exh
5、ibit identical performance to those leaded fuels forwhich the existing aircraft and ground-based fuel handlingequipment have been designed to operate on. Therefore, thesuitability of this fuel for use on any specific aircraft, aircraftengine, or ground-based fuel handling equipment should beevaluate
6、d before 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 authorit
7、y as part 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 measureme
8、nt are included 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 limitati
9、ons prior to use.2. Referenced Documents2.1 ASTM Standards:3D86 Test Method for Distillation of Petroleum Products atAtmospheric PressureD130 Test Method for Corrosiveness to Copper from Petro-leum Products by Copper Strip TestD323 Test Method for Vapor Pressure of Petroleum Products(Reid Method)D87
10、3 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 Petroleum P
11、roducts (LampMethod)D1298 Test Method for Density, Relative Density, or APIGravity of Crude Petroleum and Liquid Petroleum Prod-ucts by Hydrometer MethodD1319 Test Method for Hydrocarbon Types in Liquid Petro-leum Products by Fluorescent Indicator AdsorptionD2386 Test Method for Freezing Point of Av
12、iation FuelsD2622 Test Method for Sulfur in Petroleum Products byWavelength Dispersive X-ray Fluorescence 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 Gas
13、oline byAtomicAbsorp-tion SpectroscopyD4052 Test Method for Density, Relative Density, and APIGravity of Liquids by Digital Density Meter1This specification is under the jurisdiction of ASTM Committee D02 onPetroleum Products, Liquid Fuels, and Lubricants and is the direct responsibility ofSubcommit
14、tee D02.J0.02 on Spark and Compression Ignition Aviation EngineFuels.Current edition approved Dec. 1, 2014. Published April 2015. Originallyapproved in 2011. Last previous edition approved in 2014 as D7719 14c. DOI:10.1520/D7719-14CD.2Supporting data have been filed at ASTM International Headquarter
15、s and maybe obtained by requesting Research Report RR:D02-1721.3For referenced 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 websit
16、e.*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 States1D4057 Practice for Manual Sampling of Petroleum andPetroleum ProductsD4171 Specification for Fuel System Icing Inhibito
17、rsD4177 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 (PrecisionMethod)D4814 Specification for Automo
18、tive 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-Ray Spec-troscopyD5191 Test Method for
19、Vapor Pressure of Petroleum Prod-ucts (Mini Method)D6469 Guide for Microbial Contamination 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 Avi
20、ation Gasolines andNew Aviation Gasoline AdditivesE29 Practice for Using Significant 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-
21、rial other than fossil fuels which is or was a living organism orcomponent or product 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, nga
22、solineintended for use in aircraft powered by reciprocating spark-ignition engines, where lead is not intentionally added for thepurpose of enhancing octane performance and which excludesnon-hydrocarbons, except for additives approved in this speci-fication.4. General4.1 This specification, unless o
23、therwise provided, prescribesthe required properties of 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 Manufac
24、ture6.1 D7719 fuel, except as otherwise specified in thisspecification, shall consist of blends of refined reformatehydrocarbons. The sources for these hydrocarbons includebiomass, natural gas, or crude petroleum.6.1.1 See Appendix X1 for one particular composition thatmeets the parameters of Table
25、1.6.2 AdditivesThese may be added to each grade of D7719fuel in the 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.6.2.1.1 The only blue dye present in the finished fuel shallbe essentially
26、1,4-dialkylaminoanthraquinone.6.2.1.2 The 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
27、-azo-2-naphthol.6.2.1.4 The only orange dye 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
28、be declaredby the manufacturer. Additives 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) p
29、er litre of fuel.(1) 2,6-ditertiary butyl-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-
30、 and tri-tertiary butylphenols.(6) 72 % minimum 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.6.2.2.2 Fuel System Icing Inhibitor (FSII)One of thefollowin
31、g materials may be used:(1) Isopropyl 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)
32、,conforming to the requirements 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)
33、may reduce knock ratingsbelow minimum specification values.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 permissibleD7719 14d26.2.2.4
34、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/m3HITEC 580 MAC = 22.5 g/m3NALCO 5403 MAC = 22.5 g/m3NALCO 5405 MAC = 11
35、.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 shall not exceed the maximum or be lessthan the minimum values specified i
36、n 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 Practice E29. Where multipledeterminations are made, the average result,
37、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 dangerous toxicity, under usualconditions of handling and use, shall be
38、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 Although automatic sampling following PracticeD4177 may be useful in certai
39、n 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 conductivity, and others are very sensitiveTABLE 1 Detailed Requirement
40、s for High Aromatic Content Unleaded Hydrocarbon Aviation GasolineAOctane Ratings Grade UL102 ASTM Test MethodBKnock value, Motor Octane NumberCmin 102.2 D2700Density at 15 C, kg/m3min 790D1298 or D4052max 825Distillation D86Initial boiling point, C Report D86Fuel Evaporated D8610 volume % at C max
41、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%evaporatedtemperatures, Cmin 135 D86Recovery, volume % min 97 D86Residue, volume % max 1.5 D86Loss, volume % max 1.5 D86Vapor pressure, 37.8 C, kPa min 38.0D323 or D
42、5191Dmax 49.0Freezing point, C max 58ED2386Sulfur, mass % max 0.05 D1266 or D2622Net heat of combustion, MJ/kg min 41.5 D4809Corrosion, copper strip, 2 h at 100 C max No. 1 D130Oxidation stability (5 h aging)FD873Potential gum, mg/100 mL max 6Water reactionD1094Volume change, mL max 2Electrical cond
43、uctivity, pS/m max 450GD2624Tetraethyl Lead, g Pb/L max 0.013 D3237 or D5059Total Aromatics, vol % min 70 D1319 or D6733AFor compliance of test results against the requirements of Table 1, see 7.2.BThe test methods indicated in this table are referred to in Section 11.CKnock ratings shall be reporte
44、d to the nearest 0.1 octane number.DTest Method D5191 shall be the referee vapor pressure method.EIf no crystals have appeared on cooling to 58 C, the freezing point may be reported as less than 58 C.FIf mutually agreed upon between the purchaser and the supplier, a 16 h aging gum requirement may be
45、 specified instead of the 5 h aging gum test; in such case the gumcontent shall not exceed 10 mg 100 mL. In such fuel the permissible antioxidant shall not exceed 24 mg L.GApplies only when an electrical conductivity additive is used; when a customer specifies fuel containing conductivity additive,
46、the following conductivity limits shall applyunder the condition at point of use:Minimum 50 pS mMaximum 450 pS m.The supplier shall report the amount of additive added.D7719 14d3to trace contamination which can originate from samplecontainers. For recommended sample containers, refer toPractice D430
47、6.10. 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 wit
48、h the following ASTM testmethods:11.1.1 Knock Value (Motor Octane Number)Test MethodD2700.11.1.2 Tetraethyl LeadTest Methods D3237 or D5059.11.1.3 DensityTest Methods D1298 or D4052.11.1.4 DistillationTest Method D86.11.1.5 Freezing PointTest Method D2386.11.1.6 Vapor PressureTest Methods D323 or D5
49、191.11.1.7 Net Heat of CombustionTest Method D4809.11.1.8 SulfurTest Methods D1266 or D2622.11.1.9 Corrosion (Copper Strip)Test Method D130,2htest at 100C in bomb.11.1.10 Potential Gum and Visible Lead PrecipitateTestMethod D873 except that wherever the letter X occurs (refer-ring to oxidation time) insert the number 5, designating thenumber of hours prescribed in this specification.11.1.11 Water ReactionTest Method D1094.11.1.12 Electrical ConductivityTest Method D2624.11.1.13 Aromatic ContentTest Methods D1319 or D6733.12. K
