Downloaded from http://www.everyspec.com on 2010-07-05T5:51:43.METRICMIL–PRF–5624S22 November 1996SUPERSEDINGMIL–T–5624R3 March 1995PERFORMANCE SPECIFICATIONTURBINE FUEL, AVIATION,GRADES JP–4, JP–5, AND JP–5/JP–8 STThis specification is approved for use by all Departments and Agencies of the Department of Defense.1. SCOPE1.1 Scope. This specification covers three grades of aviation fuel (see 6.1).1.2 Classification. Aviation turbine fuel will be of the following grades, as specified (see 6.2).GradeJP–4JP–5JP–5/JP–8 STNATO Code No.F–40F–44DescriptionWide cut, gasoline typeHigh flashpoint, kerosene typeSpecial test fuel, high flashpoint,kerosene type, for engine developmentand qualification testing (see 6.1).1.3 References. Turbine fuels in accordance with this specification and generally referenced in otherdocuments with grade not specified will be interpreted to also include turbine fuels in accordance withMIL–T–83133.Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be ofuse in improving this document should be addressed to: ASC/ENSI, Bldg 560, 2530 Loop Rd, West,Wright–Patterson AFB OH 433–7101, by using the self–addressed Standardization DocumentImprovement Proposal (DD Form 1426) appearing at the end of this document, or by letter.AMSC N/ADISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited.FSC 9130Downloaded from http://www.everyspec.com on 2010-07-05T5:51:43.MIL–PRF–5624S2. APPLICABLE DOCUMENTS2.1 General. The documents listed in this section are specified in sections 3 and 4 of this specification. Thissection does not include documents cited in other sections of this specification or recommended for additionalinformation or as examples. While every effort has been made to ensure the completeness of this list,document users are cautioned that they must meet all specified requirements documents cited in section 3 and4 of this specification, whether or not they are listed.2.2 Government documents2.2.1 Specifications and standards. The following specifications and standards form a part of thisdocument to the extent specified herein. Unless otherwise specified, the issues of these documents are thoselisted in the issue of the Department of Defense Index of Specifications and Standards (DoDISS) andsupplement thereto, cited in the solicitation (see 6.2).SPECIFICATIONSDEPARTMENT OF DEFENSEMIL–I–25017MIL–I–870STANDARDSFEDERALFED–STD–313FED–STD–791Material Safety Data Sheets, Preparation and Submission ofLubricants, Liquid Fuels, and Related Products; Methods of TestingInhibitor, Corrosion/Lubricity Improver, Fuel Soluble (Metric)Inhibitor, Icing, Fuel System, High Flash, NATO Code Number S–1745DEPARTMENT OF DEFENSEMIL–STD–290Packaging of Petroleum and Related ProductsQUALIFIED PRODUCTS LISTQPL–25017Inhibitor, Corrosion/Lubricity Improver, Fuel Soluble (Metric)(Unless otherwise indicated, copies of federal and military specifications, standards, and handbooks areavailable from the Defense Printing Service Detachment Office, Building 4D, 700 Robbins Avenue,Philadelphia PA 19111–5094.)2.3 Non–Government publications. The following documents form a part of this document to the extentspecified herein. Unless otherwise specified, the issues of the documents which are DoD adopted are thoselisted in the issue of the DoDISS cited in the solicitation. Unless otherwise specified, the issues of documentsnot listed in the DoDISS are the issues of the documents cited in the solicitation (see 6.2).AMERICAN SOCIETY FOR TESTING AND MATERIALS STANDARDSASTM D56ASTM D86Standard Test Method for Flash Point by Tag Closed Tester (DoD Adopted)Standard Test Method for Distillation of Petroleum Products (DoD Adopted)2ASTM D93ASTM D130ASTM D156ASTM D240ASTM D323ASTM D381ASTM D445ASTM D976ASTM D1094ASTM D1250ASTM D1266ASTM D1298ASTM D1319ASTM D1322ASTM D2276ASTM D2386ASTM D2622ASTM D2624ASTM D2887ASTM D3120ASTM D3227ASTM D3241ASTM D3242Downloaded from http://www.everyspec.com on 2010-07-05T5:51:43.MIL–PRF–5624SStandard Test Methods for Flash Point by Pensky–Martens Closed Tester (DoD Adopted)Standard Test Method for Detection of Copper Corrosion from PetroleumProducts by the Copper Strip Tarnish Test (DoD Adopted)Standard Test Method for Saybolt Color of Petroleum Products (SayboltChromometer Method) (DoD Adopted) Standard Test Method for Heat of Combustion of Liquid HydrocarbonFuels by Bomb Calorimeter (DoD Adopted) Standard Test Method for Vapor Pressure of Petroleum Products(Reid Method) (DoD Adopted)Standard Test Method for Existent Gum in Fuels by Jet Evaporation (DoD Adopted)Standard Test Method for Kinematic Viscosity of Transparent andOpaque Liquids (and the Calculation of Dynamic Viscosity) (DoD Adopted)Standard Test Methods for Calculated Cetane Index of Distillate Fuels (DoD Adopted)Standard Test Method for Water Reaction of Aviation Fuels (DoD Adopted)Standard Guide for Petroleum Measurement Tables (DoD Adopted)Standard Test Method for Sulfur in Petroleum Products (Lamp Method)(DoD Adopted)Standard Practice for Density, Relative Density (Specific Gravity), orAPI Gravity of Crude Petroleum and Liquid Petroleum Products byHydrometer Method (DoD Adopted)Standard Test Method for Hydrocarbon Types in Liquid PetroleumProducts by Fluorescent Indicator Adsorption (DoD Adopted)Standard Test Method for Smoke Point of Aviation Turbine Fuels (DoD Adopted)Standard Test Method for Particulate Contaminant in Aviation Fuelby Line Sampling (DoD Adopted)Standard Test Method for Freezing Point of Aviation Fuels (DoD Adopted)Standard Test Method for Sulfur in Petroleum Products by X–RaySpectrometry (DoD Adopted)Standard Test Methods for Electrical Conductivity of Aviation andDistillate Fuels Containing a Static Dissipator Additive (DoD Adopted)Standard Test Method for Boiling Range Distribution of PetroleumFractions by Gas Chromatography (DoD Adopted)Standard Test Method for Trace Quantities of Sulfur in Light LiquidPetroleum Hydrocarbons by Oxidative Microcoulometry (DoD Adopted)Standard Test Method for Mercaptan Sulfur in Gasoline, Kerosene,Aviation Turbine, and Distillate Fuels (Potentiometric Method)(DoD Adopted)Standard Test Method for Thermal Oxidation Stability of AviationTurbine Fuels (JFTOT Procedure) (DoD Adopted)Standard Test Method for Acidity in Aviation Turbine Fuel (DoD Adopted)3Downloaded from http://www.everyspec.com on 2010-07-05T5:51:43.ASTM D3338ASTM D3343ASTM D3701ASTM D3828ASTM D3948ASTM D4052ASTM D4057ASTM D4177ASTM D4294ASTM D4306ASTM D4529ASTM D4809ASTM D4952ASTM D4953ASTM D5006ASTM D5190ASTM D5191ASTM D52ASTM D53ASTM D590lASTM D5972ASTM E29ASTM E380ASTM RR:D02–1286; 1991MIL–PRF–5624SStandard Test Method for Estimation of Net Heat of Combustion ofAviation Fuels (DoD Adopted)Standard Test Method for Estimation of Hydrogen Content of Aviation Fuels(DoD Adopted)Standard Test Method for Hydrogen Content of Aviation Turbine Fuelsby Low Resolution Nuclear Magnetic Resonance Spectrometry (DoD Adopted)Standard Test Methods for Flash Point by Setaflash Closed Tester(DoD Adopted)Standard Test Methods for Determining Water Separation Characteristicsof Aviation Turbine Fuels by Portable Separometer (DoD Adopted)Standard Test Method for Density and Relative Density of Liquids byDigital Density Meter (DoD Adopted)Standard Practice for Manual Sampling of Petroleum and Petroleum Products(DoD Adopted)Standard Practice for Automatic Sampling of Petroleum and PetroleumProducts (DoD Adopted)Standard Test Method for Sulfur in Petroleum Products byEnergy–Dispersive X–Ray Fluorescence Spectroscopy (DoD Adopted)Standard Practice for Aviation Fuel Sample Containers for TestsAffected by Trace Contamination (DoD Adopted)Standard Test Method for Estimation of Net Heat of Combustion of Aviation FuelsStandard Test Method for Heat of Combustion of Liquid HydrocarbonFuels by Bomb Calorimeter (Intermediate Precision Method) (DoD Adopted)Standard Test Method for Qualitative Analysis for Active Sulfur Speciesin Fuels and Solvents (Doctor Test) (DoD Adopted)Standard Test Method for Vapor Pressure of Gasoline and Gasoline–Oxygenate Blends (Dry Method)Standard Test Method for Measurement of Fuel System Icing Inhibitors(Ether Type) in Aviation Fuels (DoD Adopted)Vapor Pressure of Petroleum Products (Automatic Method)Vapor Pressure of Petroleum Products (Mini Method) (DoD Adopted)Standard Test Method for Particulate Contamination in Aviation Fuelsby Laboratory Filtration (DoD Adopted)Standard Test Method for Determination of Total Sulfur in LightHydrocarbons, Motor Fuels and Oils by Ultraviolet FluorescenceTest Method for Freezing Point of Aviation Fuels (Automated Optical Method)Standard Test Method for the Freezing Point of Aviation Fuels (Automated Phase Transition Method)Standard Practice for Using Significant Digits in Test Data to DetermineConformance with Specifications (DoD Adopted)Standard Practice for Use of the International System of Units (SI)(the Modernized Metric System) (DoD Adopted)ASTM Research Report, Vapor Pressure Test Method Round Robin Program4Downloaded from http://www.everyspec.com on 2010-07-05T5:51:43.MIL–PRF–5624S(Application for copies should be addressed to the American Society for Testing and Materials, 100 BarrHarbor Drive, West Conshohocken PA 19428–2959; (610) 832–9500.)2.4 Order of precedence. In the event of a conflict between the text of this document and the referencescited herein (except for related associated detail specifications, specification sheets, or MS standards), thetext of this document takes precedence. Nothing in this document, however, supersedes applicable laws andregulations unless a specific exemption has been obtained.3. REQUIREMENTS3.1 Materials. The fuels supplied under this specification shall be refined hydrocarbon distillate fuel oilswhich contain additives in accordance with 3.3. The feed stock from which the fuel is refined shall be crudeoils derived from petroleum, tar sands, oil shale, or mixtures thereof.3.2 Chemical and physical requirements. The chemical and physical requirements of the finished fuelshall conform to the requirements listed in section 3 and tables I and II, as applicable, when tested inaccordance with the applicable test methods. Requirements contained herein are absolute as defined in ASTME29 and shall not be subject to correction for test tolerances.3.3 Additives. Information concerning the type and amount of each additive used shall be made availablewhen requested by procuring activity or user.3.3.1 Antioxidants. Immediately after processing (i.e., during the rundown into feed/batch tank) andbefore the fuel is exposed to the atmosphere, an approved antioxidant shall be added to all JP–5 andJP–5/JP–8 ST fuels and to JP–4 fuels which contain blending stocks which have been hydrogen treated toprevent the formation of gums and peroxides after manufacture. JP–4 fuels which do not containhydrogen–treated blending stocks may have the antioxidant added. The concentration of antioxidant to beadded shall be as follows:a.For JP–5, JP–5/JP–8 ST, and hydrogen treated JP–4: Not less than 17.2 mg, nor more than 24.0 mgof active ingredient per liter of fuel (6.0 to 8.4 lb/1000 barrels).b.For those JP–4 fuels not hydrogen treated, the supplier may add not more than 24.0 mg of activeingredient per liter of fuel (8.4 lb/1000 barrels).3.3.1.1 Formulations. The following antioxidant formulations are approved:a.b.c.d.e.2,6–di–tert–butyl–4–methylphenol6–tert–butyl–2,4–dimethylphenol2,6–di–tert–butylphenol75 percent min 2,6–di–tert–butylphenol25 percent max tert–butylphenols and tri–tert–butylphenols72 percent min 6–tert–butyl–2,4–dimethyphenol28 percent max tert–butyl–methylphenols and tert–butyl–dimethylphenols.5Downloaded from http://www.everyspec.com on 2010-07-05T5:51:43.MIL–PRF–5624S3.3.2 Metal deactivator. A metal deactivator, N,N’–disalicylidene–1,2–propanediamine orN,N’–disalicylidene–1,2–cyclohexanediamine may be blended into the fuel in an amount not to exceed5.8 mg active ingredient per liter of fuel (2 lb/1000 barrels or 22 mg/gal (US)). Metal deactivator additiveshall not be used in JP–5 or JP–4 unless the supplier has obtained written consent from the Procuring Activityand user.3.3.3 Corrosion inhibitor. A corrosion inhibitor that conforms to MIL–I–25017 shall be blended into theJP–4, JP–5, and JP–5/JP–8 ST fuel by the supplier. The amount added shall be equal to or greater than theminimum effective concentration and shall not exceed the maximum allowable concentration listed in thelatest revision of QPL–25017.3.3.4 Fuel system icing inhibitor. The use of a fuel system icing inhibitor shall be mandatory. The icinginhibitor shall be in accordance with MIL–I–870. The point of injection of the additive for JP–4, JP–5, andJP–5/JP–8 ST shall be determined by agreement between the Purchasing Authority and the supplier.3.3.5 Static dissipator additive. A static dissipator additive shall be added to JP–4 fuels in sufficientconcentration to increase the conductivity of the fuel to within the range specified in table I, at the point ofinjection. The point of injection shall be determined by agreement between the Purchasing Authority and thesupplier. The following static dissipater additive is approved: Stadis 450R, marketed by Octel America,Newark, DE.3.3.6 Premixing of additives. Additives shall not be premixed with other additives before injection into thefuel so as to prevent possible reactions among the concentrated forms of different additives.3.4 Workmanship. At the time of Government acceptance, the finished fuel shall be clear and bright andvisually free from undissolved water, sediment, or suspended matter. In case of dispute, the fuel shall be clearand bright at 21_C (70_F). If the finished fuel is not visually free from sediment or suspended matter butmeets the table I particulate matter content of 1.0 mg/L max, the fuel shall be considered to have met thisworkmanship requirement.6Downloaded from http://www.everyspec.com on 2010-07-05T5:51:43.MIL–PRF–5624STABLE I. Chemical and physical requirements and test methods.GradeJP–4Report0.01525.00.002Negative0.40GradeJP–5Report0.01525.00.002Negative0.40Test MethodASTM StandardsD156D3242D1319D3227D4952D1266, D2622,D3120, D429411,or D53D861, 11 orD2887ReportReport100_C, min125_C, minReport270_C, max1.51.5Report206 (185)_C, maxReportReportReport300 (330)_C, max1.51.560 (140)14D56, D9311, orD3828D1298 orD405211D323, D4953,D5190, orD519111, 12–46 (–51)8.2.8(18,400)42.6(18,300)D238611, D5901,or D59722D445D3338, D480911,or D4529RequirementsColor, SayboltTotal acid number, mg KOH/g, maxAromatics, vol percent, maxSulfur, Mercaptan, mass percent, max ORDoctor testSulfur, total, mass percent, maxDistillation temperature, _C (D2887 tests in parentheses)15 Initial boiling point 10 percent recovered, temp 20 percent recovered, temp 50 percent recovered, temp 90 percent recovered, temp End point, max temp Residue, vol %, max (for D86) Loss, vol %, max (for D86)Flash point, _C (_F), minDensity, at 15_C kg/L, min (API max) kg/L, max (API min)Vapor pressure, at 37.8_C (100_F), kPa (psi) minimum maximumFreezing point, _C (_F), maxViscosity, at –20_C, max centistokesHeating value,Heat of combustion, MJ/kg, (BTU/lb), min0.751 (57.0)0.802 (45.0)14 (2.0)21 (3.0)–58 (–72)0.788 (48.0)0.845 (36.0)7Downloaded from http://www.everyspec.com on 2010-07-05T5:51:43.MIL–PRF–5624STABLE I. Chemical and physical requirements and test methods (contd.)RequirementsCalculated Cetane IndexHydrogen content, mass percent, minSmoke point, mm, minCopper strip corrosion, 2 hr at100_C (212_F), maxThermal stability:Change in pres. drop, mm of Hg, maxTube deposit code, less thanExistent gum, mg/100 mL, maxParticulate matter, mg/L, maxFiltration time, minutes, maxWater reactionInterface rating, maxMicroseparometer rating, minFuel system icing inhibitorvolume percent minvolume percent maxFuel electrical conductivity, pS/mallowable rangeGrade JP–4GradeJP–5ReportTest MethodASTM StandardsD9763D37014D1322D130D32415D38113D2276 orD526613.520.012537.01.010lb813.419.012537.01.0157lb8D1094D3948D50060.100.15150 to 600100.150.2099D26241A condenser temperature of 0_ to 4_C (32_ to 40_F) shall be used for the distillation of JP–5 andJP–5/JP–8 ST fuels. For JP–4, group 3 test conditions shall be used.ASTM D5972 may be used for freeze point determination of JP–5 only.Mid–boiling temperatures may be obtained by either D86 or D2887 to perform the Cetane Indexcalculation. If D86 values are used, they should be corrected to standard barometric pressure.ASTM D3343 or ASTM D3701 may be used to measure hydrogen content of JP–4, but when measuringhydrogen content of JP–5 and JP–5/JP–8 ST fuel, only ASTM D3701 shall be used.See 4.4.2.1 for ASTM D3241 test conditions and test limits.23458Downloaded from http://www.everyspec.com on 2010-07-05T5:51:43.MIL–PRF–5624S6A minimum sample size of 3.79 liters (1 gallon) shall be filtered. Filtration time will be determined in accordance with the procedure in appendix A. The procedure in appendix A may also be used for thedetermination of particulate matter as an alternate to ASTM D2276 or ASTM D52.78The flow reducer ring of appendix A, A.4.c, is not required for JP–5 and JP–5/JP–8 ST fuel.The minimum microseparometer rating using a Micro–Separometer (MSEP) shall be as follows: Product JP–4AdditivesAntioxidant (AO)*,Metal Deactivator (MDA)*, andFuel System Icing Inhibitor (FSII)AO*, MDA*, FSII, and Corrosion Inhibitor/Lubricity Improver (CI/LI)AO*, MDA*, and FSIIAO*, MDA*, and CI/LIAO*, MDA*, CI/LI, and FSIIMSEP Rating, min85JP–4JP–5 andJP–5/JP–8 STJP–5 andJP–5/JP–8 STJP–5 andJP–5/JP–8 ST70858070*Even though the presence or absence of this additive does not change these limits, samples submitted for specification conformance testing shall contain the same additives present in the refinery batch.Regardless of which minimum the refiner elects to meet, the refiner shall report the MSEPrating on a laboratory hand blend of the fuel with all additives required by the specification.910Tests shall be performed with ASTM D5006 using the DiEGME scale of the refractometer.The conductivity must be in the range of 150 to 600 pS/m at ambient fuel temperature or 29.4_C(85_F), whichever is lower.Referee Test Method.When using ASTM D5191 for vapor pressure determinace of JP–4, the quality control checks, section 10, must be performed each day using two control samples as the reference pure materials. The first control sample must have a vapor pressure between 7 and 14 kPa and the second control sample must have a vapor pressure between 21 and 23 kPa.If air is used instead of steam while performing ASTM D381, it must be reported. In case of a failure withair, the sample must be retested using steam.ASTM D3828 may give results up to 2.7_C (3_F) below the ASTM D93 results. ASTM D56 may giveresults up to 1_C (2_F) below the ASTM D93 results.ASTM D2887 may be used for JP–5 fuel only.11121314159Downloaded from http://www.everyspec.com on 2010-07-05T5:51:43.MIL–PRF–5624STABLE II. Chemical and physical requirements for JP–5/JP–8 ST. Test MethodASTM StandardsD1319D1298 or D4052D3701D1322RequirementsAromatics, vol percentDensity, at 15_C, kg/L (API)Hydrogen content, wt percentSmoke point, mmMinimum23.00.815 (42.1)13.318.0Maximum27.00.845 (36.0)13.521.0NOTE: All other requirements of table I for grade JP–5 apply.4. VERIFICATION4.1 Classification of inspections. The inspection requirements specified herein are classified as qualityconformance inspection (see 4.2).4.2 Conformance inspection. Test for the acceptance of individual lots shall consist of tests for allrequirements specified in section 3. Quality conformance inspection shall include the test requirementherein.4.2.1 Inspection lot. For acceptance purposes, individual lots shall be examined as specified herein andsubjected to tests for all requirements cited in section 3.4.2.1.1 Bulk lot. A bulk lot shall consist of an indefinite quantity of a homogeneous mixture of materialoffered for acceptance in a single isolated container or manufactured in a single plant run through the sameprocessing equipment, with no change in ingredient material.4.2.1.2 Packaged lot. A packaged lot shall consist of an indefinite number of 208–liter (55–gallon) drums orsmaller unit packages of identical size and type, offered for acceptance, and filled from the isolated tankcontaining a homogeneous mixture of material or filled with a homogeneous mixture of material run throughthe same processing equipment, with no change in ingredient material.4.2.1.3 Homogeneous product. A homogeneous product is defined as a product where samples taken atvarious levels of the batch tank are tested for the defining homogeneous characteristics and all values obtainedmeet the repeatability precision requirements for that test method.4.2.2 Sampling plans.4.2.2.1 Sampling for verification of product quality. Each bulk or packaged lot of material shall besampled for verification of product quality in accordance with ASTM D4057 and/or ASTM D4177, exceptwhere individual test procedures contain specific sampling instructions.4.2.2.1.1 Sample containers. A number of jet fuel properties are very sensitive to trace contamination whichcan originate from sample containers. For recommended sample containers refer to ASTM D4306.4.2.2.2 Sampling for examination of filled containers for delivery. A random sample of filled containersshall be selected from each lot. The samples shall be examined in accordance with 4.4.1.3.10Downloaded from http://www.everyspec.com on 2010-07-05T5:51:43.MIL–PRF–5624S4.3 Inspection conditions. Requirements contained in tables I and II are absolute as defined in ASTM E29,and shall not be subject to correction for test tolerances. If multiple determinations are made, results fallingwithin any specified repeatability and reproducibility tolerances may be averaged. For rounding off ofsignificant figures, ASTM E29, absolute method, shall apply to all tests required by this specification.4.4 Methods of inspection4.4.1 Examination of product4.4.1.1 Visual inspection. Samples selected in accordance with 4.2.1 shall be visually examined forcompliance with 3.4.4.4.1.2 Examination of empty containers. Prior to filling, each empty unit container shall be visuallyinspected for cleanliness and suitability in accordance with ASTM D4057.4.4.1.3 Examination of filled containers. Samples, taken as specified in 4.2.2 shall be examined forconformance to MIL–STD–290 with regard to fill, closure, sealing, leakage, packaging, packing, andmarkings. Any container having one or more defects under the required fill shall be rejected.4.4.2 Chemical and physical tests. Tests to determine conformance to chemical and physical requirements(see 3.2) shall be conducted in accordance with the applicable test methods (FED–STD–791 or ASTM) listedin tables I and II, except for those specified herein.4.4.2.1 Thermal stability. The thermal stability test shall be conducted using ASTM D3241 (JFTOT). Theheater tube shall be rated visually (see appendix B).4.4.2.1.1 Test conditionsa. Heater tube temperature at maximum point: 260 0C (500 0F)b. Fuel system pressure: 3.45 MPa (500 pounds/square inch of gravity)c. Fuel flow rate: 3.0 milliliter/minuted. Test duration: 150 minutes4.4.2.1.2 Acceptability criteria. The fuel sample is acceptable if all the following criteria are met:a.The maximum visual rating of the heater tube deposits is less than a code 3 (appendix B, 3.6).b.The visual rating of the heater tube shows neither peacock–type deposit (code P) nor abnormal–typedeposits (code A) (appendix B, 3.6.3.1 and 3.6.3.2).c.The maximum differential pressure across the test filter does not exceed 25 mm of mercury.d.Remove the reservoir cover and pour into a measuring cylinder the fuel found above the piston only.If this measured fuel is less than 405 mls, reject the test because insufficient fuel has been pumped for anormal 150–minute test. It is suggested the cause of the insufficient flow be located before another test isrun.11Downloaded from http://www.everyspec.com on 2010-07-05T5:51:43.MIL–PRF–5624S4.4.2.1.3 ASTM D3241 reported data.a.Report the differential pressure in millimeters of mercury at 150 minutes, or time to differentialpressure of 25 mm of mercury, whichever comes first.b.Report the heater tube deposit code rating at the end of the test.c.If a Mark 8A Tube deposit rater is available, the maximum SPUN TDR rating shall be reported forinformation purposes.5. PACKAGING5.1 Packaging. For acquisition purposes, the packaging requirements shall be as specified in the contract ororder (see 6.2). When actual packaging of material is to be performed by DoD personnel, these personnelneed to contact the responsibe packaging activity to ascertain requisite packaging requirements. Packagingrequirements are maintained by the Inventory Control Point’s packaging activity within the MilitaryDepartment or Defense Agency, or within the Military Department’s System Command. Packaging dataretrieval is available from the managing Military Department’s or Defense Agency’s automated packagingfiles, CD–ROM products, or by contacting the responsible packaging activity.6. NOTES(This section contains information of a general or explanatory nature that may be helpful, but is notmandatory.)6.1 Intended use. The JP–4 and JP–5 fuels covered by this specification are intended for use in aircraftturbine engines. The JP–5/JP–8 ST (special test) fuel is a worst–case kerosene–type aviation turbine fuel interms of fuel effects on engine starting, altitude relight, combustor durability, and exhaust smoke emissions.This fuel is intended for use in the development, testing, and qualification of engine components, engines, andaircraft. When authorized, the JP–5/JP–8 ST fuel may also be used for qualification testing of ground–basedturbine engines.6.2 Acquisition requirements. Acquisition documents must specify the following:a.Title, number, and date of this specificationb.Issue of DoDISS to be cited in the solicitation and, if required, the specific issue of individualdocuments referenced (see 2)c.d.e.Grade of fuel required (see 1.2)Quantity required and size containers desiredLevel of packaging and packing requiredf.Location and injection method for addition of fuel system icing inhibitor (JP–4, JP–5, andJP–5/JP–8 ST and electrical conductivity additive (JP–4 only)).12Downloaded from http://www.everyspec.com on 2010-07-05T5:51:43.MIL–PRF–5624S6.3 Conversion of metric units. Units of measure have been converted to the International System of Units(SI) (Metric) in accordance with ASTM E380. If test results are obtained in units other than Metric or there is arequirement to report dual units, ASTM E380 or ASTM D1250, Volume XI/XII, should be used to convert theunits.6.4 Inspection. Inspection should be performed in accordance with method 9601 of FED–STD–791.6.5 Material Safety Data Sheets. Contracting officers will identify those activities requiring copies ofcompleted Material Safety Data Sheets prepared in accordance with FED–STD–313. The pertinentGovernment mailing addresses for submission of data are listed in FED–STD–313.6.6 Subject term (key word) listing.antioxidantcorrosion inhibitoricing inhibitorjet fuelspecial test fuelstatic dissipater additive6.7 International standardization agreements. Certain provisions of this specification are the subject ofinternational standardization agreements ASCC Air Standard 15/6, ASCC Advisory Publication 15/9,STANAG 1135, and STANAG 3747. When amendment, revision, or cancellation of this specification isproposed which affects or violates the international agreement concerned, the Preparing Activity will takeappropriate reconciliation action through international standardization channels including the departmentalstandardization office, if required.6.8 Changes from previous issue. Marginal notations are not used in this revision to identify changes withrespect to the previous issue due to the extensiveness of the changes.Custodians:Army – ATNavy – ASAir Force – 11DLA – PSReview activities:Army – AV, ARAir Force – 68Navy – SHPreparing activity:Air Force – 11(Project 9130–1059)13Downloaded from http://www.everyspec.com on 2010-07-05T5:51:43.MIL–PRF–5624SAPPENDIX AMETHODS FOR DETERMINATION OFFILTRATION TIME AND TOTAL SOLIDS (PARTICULATE)A.1 SCOPEA.1.1 Scope. This method describes a procedure to determine singularly or simultaneously the filterabilitycharacteristics and solids contamination of jet fuel. The purpose is to detect and prevent contaminants in jetfuel which can plug and cause rupture of ground filtration equipment, thereby affecting flightreliability/safety of aircraft. This appendix is a mandatory part of the specification. The informationcontained herein is intended for compliance.A.2 APPLICABLE DOCUMENTS(This section is not applicable to this appendix.)A.3 METHODSA.3.1 Summery of methods. 3.79 liters (1 gallon) of jet fuel is filtered through a membrane filter in thelaboratory. The time required to filter this volume is measured in minutes and solids content is determinedgravimetrically.A.4 APPARATUSa.Membrane filter: White, plain 47 mm diameter, nominal pore size 0.8 micron. The membrane mustbe approved by ASTM for use with ASTM D52.b. Filtration apparatus: Of the types shown in ASTM D52, figure 2. It consists of a funnel andfunnel base with a filter support such that a membrane filter can be securely locked or clamped betweenthe sealing surfaces of the funnel and its base. The funnel and funnel base shall be of stainless steel orglass construction.c.Insert ring. The insert ring shall only be used with JP–4 fuel. A 47–mm diameter paper flow reducerring with dimensions to give a filtering area of 4.8 cm2. (Millipore Corporation Part No. XX10 04710.)d.e.f.g.h.i.Vacuum flask: A minimum of 4 liters.Vacuum system: That develops in excess of 67.5 kPa (20 in. of mercury) vacuum._5°C (194°+_9°F).Oven: Of the static type (without fan assisted circulation) controlling to 90°+Forceps: Flat–bladed with unserrated, nonpointed tips.Solvent filtering dispenser: Containing a 0.45 micron maximum pore size filter in the delivery line.Glass Petri dish: Approximately 125 mm in diameter with removable cover.j.Analytical balance: Single or double pan, the precision standard deviation of which must be0.07 mg or better.14Downloaded from http://www.everyspec.com on 2010-07-05T5:51:43.MIL–PRF–5624SAPPENDIX AA.5 PREPARATIONA.5.1 Preparation of apparatus and sample containers. All components of the filtration apparatus(except the vacuum flask), sample containers, and their caps must be cleaned as described in Paragraph 8 ofASTM D52. All metal parts of the filtration apparatus are to be electrically bonded and grounded, includingthe fuel sample container and the metal insert ring, if used. See ASTM D52 for other safety precautions.A.6 SAMPLINGA.6.1 Sample. Obtain a representative 3.79 liters (1 gallon) sample as directed in Paragraph 9 ofASTM D52. When sampling from a flowing stream is not possible, an all level sample or an average samplein accordance with ASTM D4057 and/or ASTM D4177 shall be permitted. The 3.79–liters (1–gallon) samplecontainer shall be an interior epoxy–coated metal can, a brown glass bottle, or a clear glass bottle protected bysuitable means from exposure to light.A.7 PROCEDUREA.7.1 Test procedure.a.Membrane filters shall be removed from the package and placed in an oven for a minimum of15 minutes at 90°C. After preheating, but prior to weighing, the membrane filters shall be stored in adesiccator.b.Each membrane filter shall be weighed. A filter weighing in excess of 90 mg will not be used in thetest.c.The insert ring shall be centered on the filter base. One membrane filter shall be placed directly overthe insert ring. The top funnel shall be locked into place.d.Immediately prior to filtering the fuel, shake the sample to obtain a homogenous mix and assure thatfuel temperature does not exceed 30°C (86°F). Clean the exterior or top portion of the sample container toinsure no contaminants are introduced. Any free water present in the fuel sample will invalidate thefiltration time results by giving an excessive filtration time rating.e.With the vacuum off, pour approximately 200 mL of fuel into the funnel.f.Turn vacuum on and record starting time. Continue filtration of the 3.79 liters (1 gallon) sample,periodically shaking the sample container to maintain a homogenous mix. Record the vacuum in kPa (in.of mercury) 1 minute after start and again immediately prior to completion of filtration. Throughoutfiltration, maintain a sufficient quantity of fuel in the funnel so the membrane filter is always covered.g.Report the filtration time in minutes, rounding up to the next whole number. If filtration of the3.79 liters (1 gallon) is not completed within 30 minutes, the test will be stopped and the volume of thefuel filtered will be measured. In these cases, results will be reported as 30+minutes/volume of fuelfiltered.h. Report the vacuum in kPa (in. of mercury) as determined from the average of the two readings takenin A.7.1.f.15Downloaded from http://www.everyspec.com on 2010-07-05T5:51:43.MIL–PRF–5624SAPPENDIX Ai.After recording the filtration time, shut off the vacuum and rinse the sample container withapproximately 100 mL of filtered petroleum ether and dispense into the filtration funnel. Turn on thevacuum and filter the 100 mL rinse. Turn off the vacuum and wash the inside of the funnel withapproximately 50 mL of filtered petroleum ether. Turn on vacuum and filter. Repeat the funnel rinse withanother 50 mL of petroleum ether but allow the rinse to soak the filter for approximately 30 secondsbefore turning on the vacuum to filter the rinse. With the vacuum on, carefully remove the top funnel andrinse the periphery of the membrane filter by directing a gentle stream of petroleum ether from the solventdispenser from the edge of the membrane toward the center, taking care not to wash contaminants off thefilter. Maintain vacuum after final rinse for a few seconds to remove the excess petroleum ether from thefilter.j. Using forceps, carefully remove the membrane filter from the filter base and place in a clean Petridish. Dry in the oven at 90°C (194°F) for 15 minutes with the cover on the Petri dish slightly ajar. Placedish in a dessicator and allow to cool for a minimum of 15 minutes. If more than one sample is processed,cooling time will have to be increased. Reweigh the filter.k.Report the total solids content in mg/liter by using the following formula:Weight gain of filter in mgs3.785= mg/literl.Should the sample exceed the 30–minute filtration time and a portion of the fuel is not filtered, thesolids content in mg/liter will be filtered as follows: Determine the volume of fuel filtered by subtractingthe ml of fuel remaining from 3785.Weight gain of filter in mgsml of fuel filtered 0.001A.8 LIMITA.8.1 Test limits.a.Filtration time:(1)The maximum allowable filtration time shall be 10 minutes for grade JP–4 and 15 minutes forgrade JP–5.(2)The vacuum should exceed 67.5 kPa (20 in. of mercury) throughout the test; i.e., the differentialpressure across the filter should exceed 67.5 kPa (20 in. of mercury).(3)The fuel temperature shall be between 18° and 30°C (° and 86°F).b.Total solids: Maximum allowable particulate matter is 1.0 mg/liter.= mg/liter16Downloaded from http://www.everyspec.com on 2010-07-05T5:51:43.MIL–PRF–5624SAPPENDIX AA.9 NOTESA.9.1 If it is desired to determine the filtration time and not the total solids content, perform the test byomitting steps A.7.1.i, A.7.1.j, A.7.1.k, and A.7.1.l.A.9.2 If it is desired to determine the total solids content and not the filtration time, use of the insert ring maybe omitted. It is also permissible, but not required, to use a control filter for a specific analysis or a series ofanalyses. When this is accomplished, the procedures specified in ASTM D52 apply.17Downloaded from http://www.everyspec.com on 2010-07-05T5:51:43.MIL–PRF–5624SAPPENDIX BHEATER TUBE DEPOSIT RATINGB.1 SCOPEB.1.1 Scope. The scope of this appendix is to provide a visual method for rating heater tube deposit. Thisappendix is a mandatory part of the specification. The information contained herein is intended forcompliance. B.2 APPLICABLE DOCUMENTS(This section is not applicable to this appendix.)B.3 VISUAL METHODB.3.1 Snap the upper end of the heater tube into the clamp of the adapter for the heater tube.B.3.2 Push the heater tube against the stop of the adapter tube.B.3.3 Slide the adapter with the heater tube over the guide rod into the tuberator equipped with a magnifyingglass assembly.B.3.4 Insert the ASTM color standard into the tuberator.B.3.5 Rotate the adapter and position the heater tube so that the side with the maximum deposit is visible.B.3.6 Within 30 minutes after completion of the test, visually examine the heater tube in a tuberator. Theentire portion of the test section between the bottom shoulder and the top shoulder of the heater tube testsection shall be carefully examined using a magnifying glass in conjunction with the tuberator for any signs ofdiscoloration, scratches, or other visually identified defects. When an area of the tube corresponds visually toan ASTM color standard, the color standard code number shall be recorded. If the area being rated has a colorbetween two adjacent color standards, it shall be rated as the lighter (i.e., lower number) color standard.(NOTE: It is important that all light bulbs in the tuberator are functioning, as a change in light intensity canshift the rating significantly.) (NOTE: The person rating the tube should have normal ability to distinguishbetween colors; i.e., the rater should not be colorblind.)B.3.6.1 In rating the heater tube, the darkest deposits govern and the code number representative of thedarkest section, rather than the average deposit, shall be reported.B.3.6.2 If a spot or streak is found on the heater tube, it shall be carefully examined under various lightingconditions using a magnifying glass to determine if it is a deposit, a scratch, or tube defect (note the tubedefects should have been found during the pretest inspection of the tube). If the spot or streak is determined tobe a scratch or tube defect, it shall be disregarded. If the spot or streak is a deposit, it shall be rated against theASTM color standards, if larger in area than about 0.025 sq cm (0.004 sq in.); i.e., approximately1.5 mm 1.5 mm (1/16 in. 1/16 in.) square or an equivalent area. However, a streak deposit shall beignored if less than 0.8 mm (1/32 in.) wide, regardless of length. Note the tube section is about 3 mm (1/8 in.)18Downloaded from http://www.everyspec.com on 2010-07-05T5:51:43.MIL–PRF–5624SAPPENDIX Bin diameter; thus a 1.5 mm (1/16 in.) wide spot is half the diameter of the tube test section and a 0.8 mm(1/32 in.) wide streak is one–fourth the diameter of the tube test section.B.3.6.3 If the heater tube has deposits which do not match the color standards, the following criteria shall beused.B.3.6.3.1 If the deposit has peacock (rainbow) colors, rate this as code P (P for peacock). If some portion ofthe deposit does match the color standards, it shall be rated.B.3.6.3.2 Deposits having abnormal colors (for example, blue or gray) shall have a rating of code A (A forabnormal color) assigned.B.3.6.3.3 When reporting the overall tube rating, record the rating of the maximum deposit which matchesthe color standards plus P or A if the tube contains deposits which do not match the color standards. If the tubecontains only P or A deposits, report only the appropriate letter (s); do not try to assign a numerical rating to aP or A deposit. Examples of how the rating procedure is to be used are given below:Example 1:The darkest deposits on the heater tube match color standard 3. Also present are peacock colors. Thus, the overall tube rating to be reported is 3P.Example 2:The heater tube has maximum deposits falling between color standards 2 and 3 and has nopeacock or abnormal colors. The total tube rating is 2.Example 3:The heater tube matches color standard 1 except for an abnormal deposit which does not matchthe ASTM color standards. The overall tube rating to be reported is 1A.19Downloaded from http://www.everyspec.com on 2010-07-05T5:51:43.STANDARDIZATION DOCUMENT IMPROVEMENT PROPOSALINSTRUCTIONS1.The preparing activity must complete blocks 1, 2, 3, and 8. In block 1, both the document number and revision letter should be given.2.The submitter of this form must complete blocks 4, 5, 6, and 7.3.The preparing activity must provide a reply within 30 days from receipt of the form.NOTE: This form may not be used to request copies of documents, not to request waivers, or clarification of requirements on currentcontracts. Comments submitted on this form do not constitute or imply authorization to waive any portion of the referenceddocument(s) or to amend contractual requirements.I RECOMMEND A CHANGE:3.DOCUMENT TITLE1.DOCUMENT NUMBER2.DOCUMENT DATE (YYMMDD)MIL–PRF–5624S22 November 1996 TURBINE FUEL, AVIATION, GRADES JP–4, JP–5, AND JP–5/JP–8 ST4.NATURE OF CHANGE (Identify paragraph number and include proposed rewrite, if possible. Attach extra sheets as needed.)5.REASON FOR RECOMMENDATION6.SUBMITTERa.NAME (Last, First, Middle Initial)c.ADDRESS (Include Zip Code)b.ORGANIZATIONd.TELEPHONE (Include Area Code)(1)Commercial(2)DSN(If applicable)8.PREPARING ACTIVITYA.NAME7.DATE SUBMITTED(YYMMDD)ASC/ENSIAF CODE 112530 LOOP ROAD, WESTWRIGHT–PATTERSON AFB OH 433–7101B.TELEPHONE (Include Area Code)(1)Commercial(2)DSN (If applicable)(937) 255–6281785–6281C.ADDRESS (Include Zip Code)IF YOU DO NOT RECEIVE A REPLY WITHIN 45 DAYS, CONTACT:Defense Quality and Standardization Office5203 Leesburg Pike, Suite 1403, Falls Church VA 22041–3466Telephone (703) 756–2340 DSN 2–2340Previous editions are obsolete198/290DD Form 1426, OCT
