1、Designation: D7719 14dD7719 15 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
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. Scope*1.1 This specification covers formulating specifications for purchases of a high aromat
3、ic content unleaded hydrocarbon aviationgasoline under contract and is intended solely for use by purchasing agencies.21.2 This specification defines a specific type of high aromatic content unleaded hydrocarbon aviation gasoline (hereafter alsoreferred to as “D7719 fuel”) for use as an aviation spa
4、rk-ignition fuel. It does not include all fuels satisfactory for reciprocatingaviation engines. Certain equipment or conditions of use may permit a wider, or require a narrower, range of characteristics thanis shown by this specification.1.3 The unleaded D7719 fuel defined by this specification does
5、 not exhibit identical performance to those leaded fuels for whichthe existing aircraft and ground-based fuel handling equipment have been designed to operate on. Therefore, the suitability of thisfuel for use on any specific aircraft, aircraft engine, or ground-based fuel handling equipment should
6、be evaluated before use onthat equipment.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 subsequent to formal submission of evidence to the
7、authority 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 units are to be regarded as standard. No other units o
8、f 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 practices and determine the applicability of regulato
9、rylimitations 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 Method for Vapor Pressure of Petroleum Products (Reid
10、 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 Reaction of Aviation FuelsD1266 Test Method for Sulfur i
11、n 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 Indicator Adsorption1 This specification is under
12、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 Dec. 1, 2014June 1, 2015. Published April 2015October 2015. Originally
13、approved in 2011. Last previous edition approved in 2014 asD7719 14c.D7719 14d. DOI: 10.1520/D7719-14CD.10.1520/D7719-15.2 Supporting data have been filed at ASTM International Headquarters and may be obtained by requesting Research Report RR:D02-1721.3 For referencedASTM standards, visit theASTM we
14、bsite, 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 provide the user of an ASTM standard an indicat
15、ion 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 standard as published by ASTM is to be cons
16、idered 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 FuelsD2622 Test Method for Sulfur in Petrol
17、eum 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 by Atomic Absorption SpectroscopyD4052 Tes
18、t 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 Petroleum and Petroleum ProductsD4306 Practice
19、 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 for Generation and Dissipation of Static E
20、lectricity 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 Method)D6469 Guide for Microbial Contamina
21、tion 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 AdditivesE29 Practice for Using Significant
22、Digits in Test Data to Determine Conformance with Specifications3. Terminology3.1 Definitions:3.1.1 binary, adjcharacterized 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 produc
23、t of a living organism.3.1.3 non-hydrocarbon, ncompound or compounds 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, w
24、here lead is and lead-containing compounds are not intentionally added for the purpose of enhancing octane performanceand which excludes non-hydrocarbons, except for additives approved in this specification.4. General4.1 This specification, unless otherwise provided, prescribes the required properti
25、es 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 hydrocarbon aviation gasoline is provided, known as UL102.6. Materials and Manufacture6.1 D7719 fuel, except as otherwise specified i
26、n this specification, shall consist of blends of refined reformate 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 maycan be added to each gra
27、de of D7719 fuel in the amount, and of the composition, specified in thefollowing 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.6.2.1.2 The
28、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 only orange
29、dye present in the finished fuel shall be essentially benzene-azo-2-napthol (Color Index No. 12055).6.2.2 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 manufacturer.Additi
30、ves 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.D7719 152(1) 2,6-di
31、tertiary 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-tertiary butylph
32、enols.(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 may be used:
33、TABLE 1 Detailed Requirements for High Aromatic Content Unleaded Hydrocarbon Aviation GasolineAOctane Ratings Grade UL102 ASTM Test MethodBPropertyCOMBUSTIONNet heat of combustion, MJ/kg min 41.5 D4809OCTANE RATINGKnock value, Motor Octane NumberC min 102.2 D2700COMPOSITIONSulfur, mass % max 0.05 D1
34、266 or D2622Tetraethyl Lead, g Pb/L max 0.013 D3237 or D5059Total Aromatics, vol % min 70 D1319 or D6733Requirements for All GradesVOLATILITYVapor pressure, 37.8 C, kPa min 38.0 D323 or D5191Dmax 49.0Density at 15 C, kg/m3 min 790 D1298 or D4052max 825Distillation D86Initial boiling point, C Report
35、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 % evaporatedtemperatures, Cmin 135 D86Recovery, volume % min 97 D86Residue, volume
36、 % max 1.5 D86Loss, volume % max 1.5 D86Vapor pressure, 37.8 C, kPa min 38.0 D323 or D5191DFLUIDITYmax 49.0Freezing point, C max 58E D2386Sulfur, mass % max 0.05 D1266 or D2622CORROSIONNet heat of combustion, MJ/kg min 41.5 D4809Copper strip, 2 h at 100 C max No. 1 D130Corrosion, copper strip, 2 h a
37、t 100 C max No. 1 D130CONTAMINANTSOxidation stability (5 h aging)F D873Potential gum, mg/100 mL max 6Water reaction D1094Volume change, mL max 2Electrical conductivity, pS/m max 450G D2624OTHERTetraethyl Lead, g Pb/L max 0.013 D3237 or D5059Electrical conductivity, pS/m max 450G D2624Total Aromatics
38、, vol % min 70 D1319 or D6733AFor compliance of test results against the requirements of Table 1, see 7.2.B The test methods indicated in this table are referred to in Section 11.C Knock ratings shall be reported to the nearest 0.1 octane number.D Test Method D5191 shall be the referee vapor pressur
39、e method.E If 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 specified instead of the 5 h aging gum test; in such case the gumcontent shall not exc
40、eed 10 mg 100 mL. In such fuel the permissible antioxidant shall not exceed 24 mg L.G Applies 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:Minim
41、um 50 pS mMaximum 450 pS m.The supplier shall report the amount of additive added.D7719 153(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 aircra
42、ft owner/operator.(2) Di-Ethylene Glycol Monomethyl Ether (Di-EGME), conforming 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 o
43、f Di-EGME in aviation fuels.NOTE 1Addition of isopropyl alcohol (IPA) may reduce 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 cond
44、uctivity additive, further addition is permissible6.2.2.4 Corrosion Inhibitor AdditiveThe 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 MA
45、C = 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 requirements prescribed in Table 1.7.2 Test results shall not excee
46、d 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 the specification requirement, a test result may berounded to the same number of significant figures as in Table 1 using Practice E2
47、9. Where multiple determinations are made, theaverage result, rounded according to Practice E29, shall be used.8. Workmanship, Finish, and Appearance8.1 The D7719 fuel specified in this specification shall be free from undissolved water, sediment, and suspended matter. Nosubstances of known dangerou
48、s toxicity, under usual conditions of handling and use, shall be present except as permitted in thisspecification.9. Sampling9.1 Because of the importance of proper sampling procedures in establishing fuel quality, use the appropriate procedures inPractice D4057 or Practice D4177.9.1.1 Although auto
49、matic sampling following Practice D4177 may be useful in certain situations, initial manufacturer/supplierspecification compliance testing shall be performed on a sample taken following procedures in Practice D4057.9.2 Anumber of D7719 fuel properties, including copper corrosion, electrical conductivity, and others are very sensitive to tracecontamination which can originate from sample containers. For recommended sample containers, refer to Practice D4306.10. Reports10.1 The type and number of reports to ensure conformance with the requ
