1、Designation: D7719 14bD7719 14cStandard Specification forHigh-Octane Unleaded FuelHigh Aromatic Content UnleadedHydrocarbon Aviation Gasoline1This standard is issued under the fixed designation D7719; the number immediately following the designation indicates the year oforiginal adoption or, in the
2、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. Scope*1.1 This specification covers formulating specifications for purchases of a high-octane (MO
3、N) unleaded fuel high aromaticcontent unleaded hydrocarbon aviation gasoline under contract and is intended solely for use by purchasing agencies.21.2 This specification defines a specific type of high-octane (MON) unleaded fuel high aromatic content unleaded hydrocarbonaviation gasoline (hereafter
4、also referred to as “D7719 fuel”) for use as an aviation spark-ignition fuel. It does not include all fuelssatisfactory for reciprocating aviation engines. Certain equipment or conditions of use may permit a wider, or require a narrower,range of characteristics than is shown by this specification.1.
5、3 The D7719 fuel defined by this specification does not exhibit identical performance to those leaded fuels for which theexisting aircraft and ground-based fuel handling equipment have been designed to operate on. Therefore, the suitability of this fuelfor use on any specific aircraft, aircraft engi
6、ne, or ground-based fuel handling equipment should be evaluated before use on thatequipment.1.4 Issuance of this specification does not constitute approval to operate certificated aircraft with this fuel. Fuels used in certifiedengines and aircraft are ultimately approved by the certifying authority
7、 subsequent to formal submission of evidence to theauthority as part of the certification program for that aircraft and engine model.1.5 This specification, unless otherwise provided, prescribes the required properties of unleaded fuel at the time and place ofdelivery.1.6 The values stated in SI uni
8、ts are to be regarded as standard. No other units of measurement are included in this standard.1.7 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibilityof the user of this standard to establish appropriate safety and health pr
9、actices and determine the applicability of regulatorylimitations prior to use.2. Referenced Documents2.1 ASTM Standards:3D86 Test Method for Distillation of Petroleum Products at Atmospheric PressureD130 Test Method for Corrosiveness to Copper from Petroleum Products by Copper Strip TestD323 Test Me
10、thod for Vapor Pressure of Petroleum Products (Reid Method)D873 Test Method for Oxidation Stability of Aviation Fuels (Potential Residue Method)D909 Test Method for Supercharge Rating of Spark-Ignition Aviation GasolineD910 Specification for Leaded Aviation GasolinesD1094 Test Method for Water React
11、ion of Aviation FuelsD1266 Test Method for Sulfur in Petroleum Products (Lamp Method)D1298 Test Method for Density, Relative Density, or API Gravity of Crude Petroleum and Liquid Petroleum Products byHydrometer MethodD1319 Test Method for Hydrocarbon Types in Liquid Petroleum Products by Fluorescent
12、 Indicator Adsorption1 This specification is under the jurisdiction ofASTM Committee D02 on Petroleum Products, Liquid Fuels, and Lubricants and is the direct responsibility of SubcommitteeD02.J0.02 on Spark and Compression Ignition Aviation Engine Fuels.Current edition approved Oct. 1, 2014Oct. 15,
13、 2014. Published November 2014. Originally approved in 2011. Last previous edition approved in 2014 asD7719 14a.D7719 14b. DOI: 10.1520/D7719-14B.10.1520/D7719-14C.2 Supporting data have been filed at ASTM International Headquarters and may be obtained by requesting Research Report RR:D02-1721.3 For
14、 referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.This document is not an ASTM standard and is intended only to prov
15、ide the user of an ASTM standard an indication of what changes have been made to the previous version. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current versionof the
16、standard as published by ASTM is to be considered the official document.*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 States1D2386 Test Method for Freezing Point of Aviation
17、FuelsD2622 Test Method for Sulfur in Petroleum Products by Wavelength Dispersive X-ray Fluorescence SpectrometryD2624 Test Methods for Electrical Conductivity of Aviation and Distillate FuelsD2700 Test Method for Motor Octane Number of Spark-Ignition Engine FuelD3237 Test Method for Lead in Gasoline
18、 by Atomic Absorption SpectroscopyD4052 Test Method for Density, Relative Density, and API Gravity of Liquids by Digital Density MeterD4057 Practice for Manual Sampling of Petroleum and Petroleum ProductsD4171 Specification for Fuel System Icing InhibitorsD4177 Practice for Automatic Sampling of Pet
19、roleum and Petroleum ProductsD4306 Practice for Aviation Fuel Sample Containers for Tests Affected by Trace ContaminationD4809 Test Method for Heat of Combustion of Liquid Hydrocarbon Fuels by Bomb Calorimeter (Precision Method)D4814 Specification for Automotive Spark-Ignition Engine FuelD4865 Guide
20、 for Generation and Dissipation of Static Electricity in Petroleum Fuel SystemsD5006 Test Method for Measurement of Fuel System Icing Inhibitors (Ether Type) in Aviation FuelsD5059 Test Methods for Lead in Gasoline by X-Ray SpectroscopyD5191 Test Method for Vapor Pressure of Petroleum Products (Mini
21、 Method)D6469 Guide for Microbial Contamination in Fuels and Fuel SystemsD6733 Test Method for Determination of Individual Components in Spark Ignition Engine Fuels by 50-Metre Capillary HighResolution Gas ChromatographyD7826 Guide for Evaluation of New Aviation Gasolines and New Aviation Gasoline A
22、dditivesE29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications3. Terminology3.1 Definitions:3.1.1 aviation gasoline fuel, nfuel possessing specific properties suitable for operating aircraft powered by reciprocatingspark-ignition engines.3.1.1 binary, adj
23、characterized by, or consisting of, two components.3.1.2 biomass, nbiological material including any material other than fossil fuels which is or was a living organism orcomponent or product of a living organism.3.1.3 high-octane,non-hydrocarbon, adjnpossessing a Motor octane number (MON) greater th
24、an pound orcompounds composed of carbon, hydrogen, and other elements such as oxygen, nitrogen, sulfur, and phosphorus.3.1.4 unleaded hydrocarbon aviation gasoline, ngasoline intended for use in aircraft powered by reciprocating spark-ignitionengines, where lead is not intentionally added for the pu
25、rpose of enhancing octane performance and which excludesnon-hydrocarbons, except for additives approved in this specification.4. General4.1 This specification, unless otherwise provided, prescribes the required properties of a binary aviation fuelhigh aromaticcontent unleaded hydrocarbon aviation ga
26、soline at the time and place of delivery.5. Classification5.1 One grade of high-octane unleaded fuel high aromatic content unleaded hydrocarbon aviation gasoline is provided, knownas UL102.6. Materials and Manufacture6.1 High-octaneD7719 unleaded fuel, except as otherwise specified in this specifica
27、tion, shall consist of blends of refinedreformate hydrocarbons. The sources for these hydrocarbons include biomass, natural gas, or crude petroleum.6.1.1 See Appendix X1 for one particular composition that meets the parameters of Table 1.6.2 AdditivesThese can be added to each grade of high-octaneD7
28、719 unleaded aviation fuel in the amount, and of thecomposition, specified in the following list of approved materials:6.2.1 DyesThe total maximum concentration of dye in the fuel is 6.0 mg/L.6.2.1.1 The only blue dye present in the finished fuel shall be essentially 1,4-dialkylaminoanthraquinone.6.
29、2.1.2 The only yellow dyes in the finished fuel shall be essentially p-diethylaminoazobenzene (Color Index No. 11021) or1,3-benzenediol 2,4-bis (alkylphenyl)azo-.6.2.1.3 The only red dye present in the finished fuel shall be essentially alkyl derivatives of azobenzene-4-azo-2-naphthol.6.2.1.4 The on
30、ly orange dye present in the finished fuel shall be essentially benzene-azo-2-napthol (Color Index No. 12055).D7719 14c26.2.2 Other AdditivesThese may be added in the amount and of the composition specified in the following list of approvedmaterials. The quantities and types shall be declared by the
31、 manufacturer.Additives added after the point of manufacture shall alsobe declared.6.2.2.1 AntioxidantsThe following oxidation inhibitors may be added to the fuel separately, or in combination, in totalconcentration not to exceed 12 mg of inhibitor (not including weight of solvent) per litre of fuel
32、.(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- and tri-terti
33、ary butylphenols.(6) 72 % minimum 2,4-dimethyl-6-tertiary butylphenol plus 28 % maximum monomethyl and dimethyl tertiary butylphenols.(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 the following materials m
34、ay be used:(1) Isopropyl Alcohol (IPA, propan-2-ol), in accordance with the requirements of Specification D4171 (Type II). May be usedin concentrations recommended by the aircraft manufacturer when required by the aircraft owner/operator.(2) Di-Ethylene Glycol Monomethyl Ether (Di-EGME), conforming
35、to the requirements of Specification D4171 (Type III).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 the concentration of Di-EGME in aviation fuels.NOTE 1Addition of isopropyl alcohol (IPA) may reduce
36、 knock ratings below minimum specification values.6.2.2.3 Electrical Conductivity AdditiveStadis 450 in concentrations up to 3 mg/Lis permitted. When loss of fuel conductivitynecessitates retreatment with electrical conductivity additive, further addition is permissible6.2.2.4 Corrosion Inhibitor Ad
37、ditiveThe following corrosion inhibitors may be added to the fuel in concentrations not toexceed the maximum allowable concentration (MAC) listed for 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 = 11.0 g/m3UNICOR J MAC =
38、22.5 g/m3SPEC-AID 8Q22 MAC = 24.0 g/m3TOLAD 351 MAC = 24.0 g/m3TOLAD 4410 MAC = 22.5 g/m3TABLE 1 Detailed Requirements for High-Octane Unleaded FuelHigh Aromatic Content Unleaded Hydrocarbon Aviation GasolineOctane Ratings Grade UL102 ASTM Test MethodKnock value, Motor Octane Number min 102.2 D2700D
39、ensity at 15 C, kg/m3 min 790 D1298 or D4052max 825Distillation D86Initial boiling point, C Report D86Fuel Evaporated D8610 volume % 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 D86Sum of 10 % + 50 % evaporatedtemper
40、atures, Cmin 135 D86Recovery, volume % min 97 D86Residue, volume % max 1.5 D86Loss, volume % max 1.5 D86Vapor pressure, 37.8 C, kPa min 38.0 D323 orD5191max 49.0Freezing point, C max -58 D2386Sulfur, mass % max 0.05 D1266 or D2622Net heat of combustion, MJ/kg min 41.5 D4809Corrosion, copper strip, 2
41、 h at 100 C max No. 1 D130Oxidation stability (5 h aging) D873Potential gum, mg/100 mL max 6Water reaction D1094Volume change, mL max 2Electrical conductivity, pS/m max 450 D2624Tetraethyl Lead, g Pb/L max 0.013 D3237 or D5059Total Aromatics, vol % min 70 D1319 or D6733D7719 14c37. Detailed Requirem
42、ents7.1 The high-octaneD7719 unleaded fuel shall conform to the requirements prescribed in Table 1.7.2 Test results shall not exceed the maximum or be less than the minimum values specified in Table 1. No allowance shall bemade for the precision of the test methods. To determine the conformance to t
43、he specification requirement, a test result may berounded to the same number of significant figures as in Table 1 using Practice E29. Where multiple determinations are made, theaverage result, rounded according to Practice E29, shall be used.8. Workmanship, Finish, and Appearance8.1 The high-octaneD
44、7719 unleaded fuel specified in this specification shall be free from undissolved water, sediment, andsuspended matter. No substances of known dangerous toxicity, under usual conditions of handling and use, shall be present exceptas permitted in this specification.9. Sampling9.1 Because of the impor
45、tance of proper sampling procedures in establishing fuel quality, use the appropriate procedures inPractice D4057 or Practice D4177.9.1.1 Although automatic sampling following Practice D4177 may be useful in certain situations, initial manufacturer/supplierspecification compliance testing shall be p
46、erformed on a sample taken following procedures in Practice D4057.9.2 Anumber of high-octaneD7719 unleaded fuel properties, including copper corrosion, electrical conductivity, and others arevery sensitive to trace contamination which can originate from sample containers. For recommended sample cont
47、ainers, refer toPractice D4306.10. Reports10.1 The type and number of reports to ensure conformance with the requirements of this specification shall be mutually agreedto by the purchaser and the supplier of the high-octaneD7719 unleaded fuel.11. Test Methods11.1 The requirements enumerated in this
48、specification shall be determined in accordance with the following ASTM testmethods:11.1.1 Knock Value (Lean Rating)(Motor Octane Number)Test Method D2700.11.1.2 Tetraethyl LeadTest Methods D3237 or D5059.11.1.3 DensityTest Methods D1298 or D4052.11.1.4 DistillationTest Method D86.11.1.5 Freezing Po
49、intTest Method D2386.11.1.6 Vapor PressureTest Methods D323 or D5191.11.1.7 Net Heat of CombustionTest Method D4809.11.1.8 SulfurTest Methods D1266 or D2622.11.1.9 Corrosion (Copper Strip)Test Method D130, 2 h test at 100C in bomb.11.1.10 Potential Gum and Visible Lead PrecipitateTest Method D873 except that wherever the letter X occurs (referring tooxidation time) insert the number 5, designating the number of hours prescribed in this specification.11.1.11 Water ReactionTest Method D1094.11.1.12 Electrical ConductivityTest Me
