DRAFT MIL-DTL-25524H JPTS 08 Oct 25.pdf

DRAFT

NOTE: This draft, dated October 8, 2025, prepared by AF-68, has not been approved and is subject to modification. DO NOT USE PRIOR TO APPROVAL. (9130-2025-002)

Comments, suggestions, or questions on this document should be addressed to AFPET/PTPS, 2430 C Street, Building 70, Area B, Wright-Patterson AFB, OH 45433 or e-mailed to AFPET.PTPS@us.af.mil. Since contact information can change, you may want to verify the currency of this address information using the ASSIST Online database at https://assist.dla.mil.

AMSC N/A FSC 9130

DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited.

METRIC

MIL-DTL-25524H(USAF)

DRAFT

SUPERSEDING

MIL-DTL-25524G(USAF)

26 February 2019

DETAIL SPECIFICATION

TURBINE FUEL, AVIATION, THERMALLY STABLE (JPTS)

This specification is approved for use by the Department of the Air Force and is available for use by all Departments and Agencies of the Department of Defense.

1. SCOPE

1.1 Scope. This specification covers one grade of aviation turbine fuel designated as Aviation Thermally Stable Turbine Fuel (JPTS) (see 6.1).

2. APPLICABLE DOCUMENTS

2.1 General. The documents listed in this section are specified in sections 3 and 4 of this specification. This section does not include documents cited in other sections of this specification or recommended for additional information 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 of documents cited in sections 3 and 4 of this specification, whether or not they are listed.

mailto:AFPET.PTPS@us.af.mil https://assist.dla.mil/

MIL-DTL-25524H

2.2 Government documents.

2.2.1 Specifications, standards, and handbooks. The following specifications, standards, and handbooks form a part of this document to the extent specified herein. Unless otherwise specified, the issues of these documents are those cited in the solicitation or contract.

DEPARTMENT OF DEFENSE SPECIFICATIONS

MIL-PRF-25017 - Inhibitor, Corrosion/Lubricity Improver, Fuel Soluble

(NATO S-1747)

MIL-DTL-85470 - Inhibitor, Icing, Fuel System, High Flash NATO Code Number S-1745

QUALIFIED PRODUCTS LIST

QPL-25017 - Inhibitor, Corrosion/Lubricity Improver, Fuel Soluble

(NATO S-1747)

(Copies of these documents are available online at https://quicksearch.dla.mil.)

2.3 Non-Government publications. The following documents form a part of this document to the extent specified herein. Unless otherwise specified, the issues of these publications are those cited in the solicitation or contract.

ASTM INTERNATIONAL

ASTM D56 - Standard Test Method for Flash Point by Tag Closed Cup Tester

ASTM D86 - Standard Test Method for Distillation of Petroleum Products and Liquid Fuels at Atmospheric Pressure

ASTM D93 - Standard Test Methods for Flash Point by Pensky-Martens Closed Cup Tester

ASTM D130 - Standard Test Method for Corrosiveness to Copper from Petroleum Products by Copper Strip Test

ASTM D156 - Standard Test Method for Saybolt Color of Petroleum Products (Saybolt Chromometer Method)

ASTM D381 - Standard Test Method for Gum Content in Fuels by Jet Evaporation

ASTM D445 - Standard Test Method for Kinematic Viscosity of Transparent and Opaque Liquids (and Calculation of Dynamic Viscosity)

ASTM D1298 - Standard Test Method for Density, Relative Density, or API Gravity of Crude Petroleum and Liquid Petroleum Products by Hydrometer Method https://quicksearch.dla.mil/

MIL-DTL-25524H

ASTM D1319 - Standard Test Method for Hydrocarbon Types in Liquid Petroleum Products by Fluorescent Indicator Adsorption

ASTM D1322 - Standard Test Method for Smoke Point of Kerosine and Aviation Turbine Fuel

ASTM D1840 - Standard Test Method for Naphthalene Hydrocarbons in Aviation Turbine Fuels by Ultraviolet Spectrophotometry

ASTM D2276 - Standard Test Method for Particulate Contaminant in Aviation Fuel by Line Sampling

ASTM D2386 - Standard Test Method for Freezing Point of Aviation Fuels ASTM D2622 - Standard Test Method for Sulfur in Petroleum Products by

Wavelength Dispersive X-ray Fluorescence Spectrometry ASTM D2624 - Standard Test Method for Electrical Conductivity of Aviation and Distillate Fuels ASTM D2887 - Standard Test Method for Boiling Range Distribution of

Petroleum Fractions by Gas Chromatography ASTM D3227 - Standard Test Method for (Thiol Mercaptan) Sulfur in

Gasoline, Kerosine, Aviation Turbine, and Distillate Fuels (Potentiometric Method)

ASTM D3241 - Standard Test Method for Thermal Oxidation Stability of Aviation Turbine Fuels

ASTM D3242 - Standard Test Method for Acidity in Aviation Turbine Fuel

ASTM D3338

/ D3338M

- Standard Test Method for Estimation of Net Heat of Combustion of Aviation Fuels

ASTM D3343 - Standard Test Method for Estimation of Hydrogen Content of Aviation Fuels

ASTM D3701 - Standard Test Method for Hydrogen Content of Aviation Turbine Fuels by Low Resolution Nuclear Magnetic Resonance Spectrometry

ASTM D3703 - Standard Test Method for Hydroperoxide Number of Aviation Turbine Fuels, Gasoline and Diesel Fuels

ASTM D3948 - Standard Test Method for Determining Water Separation Characteristics of Aviation Turbine Fuels by Portable Separometer

ASTM D4052 - Standard Test Method for Density, Relative Density, and API Gravity of Liquids by Digital Density Meter

ASTM D4057 - Standard Practice for Manual Sampling of Petroleum and Petroleum Products

ASTM D4177 - Standard Practice for Automatic Sampling of Petroleum and Petroleum Products

ASTM D4294 - Standard Test Method for Sulfur in Petroleum and Petroleum Products by Energy Dispersive X-Ray Fluorescence Spectrometry

ASTM D4306 - Standard Practice for Aviation Fuel Sample Containers for Tests Affected by Trace Contamination

ASTM D4809 - Standard Test Method for Heat of Combustion of Liquid Hydrocarbon Fuels by Bomb Calorimeter (Precision Method)

ASTM D4952 - Standard Test Method for Qualitative Analysis for Active Sulfur Species in Fuels and Solvents (Doctor Test)

ASTM D5006 - Standard Test Method for Measurement of Fuel System Icing Inhibitors (Ether Type) in Aviation Fuels

ASTM D5291 - Standard Test Methods for Instrumental Determination of Carbon, Hydrogen, and Nitrogen in Petroleum Products and Lubricants

ASTM D5304 - Standard Test Method for Assessing Middle Distillate Fuel Storage Stability by Oxygen Overpressure

ASTM D5452 - Standard Test Method for Particulate Contamination in Aviation Fuels by Laboratory Filtration

ASTM D5453 - Standard Test Method for Determination of Total Sulfur in Light Hydrocarbons, Spark Ignition Engine Fuel, Diesel Engine Fuel, and Engine Oil by Ultraviolet Fluorescence

ASTM D5972 - Standard Test Method for Freezing Point of Aviation Fuels (Automatic Phase Transition Method)

ASTM D6045 - Standard Test Method for Color of Petroleum Products by the Automatic Tristimulus Method

ASTM D6379 - Standard Test Method for Determination of Aromatic Hydrocarbon Types in Aviation Fuels and Petroleum Distillates—High Performance Liquid Chromatography Method with Refractive Index Detection

ASTM D7039 - Standard Test Method for Sulfur in Gasoline, Diesel Fuel, Jet Fuel, Kerosine, Biodiesel, Biodiesel Blends, and Gasoline- Ethanol Blends by Monochromatic Wavelength Dispersive X-ray Fluorescence Spectrometry

ASTM D7042 - Standard Test Method for Dynamic Viscosity and Density of Liquids by Stabinger Viscometer (and the Calculation of Kinematic Viscosity)

ASTM D7111 - Standard Test Method for Determination of Trace Elements in Middle Distillate Fuels by Inductively Coupled Plasma Atomic Emission Spectrometry (ICP-AES)

ASTM D7153 - Standard Test Method for Freezing Point of Aviation Fuels (Automatic Laser Method)

ASTM D7154 - Standard Test Method for Freezing Point of Aviation Fuels (Automatic Fiber Optical Method)

ASTM D7171 - Standard Test Method for Hydrogen Content of Middle Distillate Petroleum Products by Low-Resolution Pulsed Nuclear Magnetic Resonance Spectroscopy

ASTM D7224 - Standard Test Method for Determining Water Separation Characteristics of Kerosine-Type Aviation Turbine Fuels Containing Additives by Portable Separometer

ASTM D7236 Standard Test Method for Flash Point by Small Scale Closed Cup Tester (Ramp Method)

ASTM D7345 - Standard Test Method for Distillation of Petroleum Products and Liquid Fuels at Atmospheric Pressure (Micro Distillation Method)

ASTM D7619 - Standard Test Method for Sizing and Counting Particles in Light and Middle Distillate Fuels, by Automatic Particle Counter

ASTM D7777 - Standard Test Method for Density, Relative Density, or API Gravity of Liquid Petroleum by Portable Digital Density Meter

ASTM D7945 - Standard Test Method for Determination of Dynamic Viscosity and Derived Kinematic Viscosity of Liquids by Constant Pressure Viscometer

ASTM D8267 - Standard Test Method for Determination of Total Aromatic, Monoaromatic and Diaromatic Content of Aviation Turbine Fuels Using Gas Chromatography with Vacuum Ultraviolet Absorption Spectroscopy Detection (GC-VUV)

ASTM D8305 - Standard Test Method for The Determination of Total Aromatic Hydrocarbons and Total Polynuclear Aromatic Hydrocarbons in Aviation Turbine Fuels and other Kerosene Range Fuels by Supercritical Fluid Chromatography

ASTM E29 - Standard Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications

(Copies of these documents are available from https://www.astm.org.)

MIL-DTL-25524H

ENERGY INSTITUTE

IP 12 - Determination of specific energy IP 16 - Determination of the freezing point of aviation fuels - Manual method IP 34 - Determination of flash point — Pensky-Martens closed cup method IP 71 Section 1 - Petroleum products - Transparent and opaque liquids -

Determination of kinematic viscosity and calculation of dynamic viscosity

IP 123 - Petroleum products - Determination of distillation characteristics at atmospheric pressure

IP 154 - Petroleum products - Corrosiveness to copper - Copper strip test

IP 156 - Determination of hydrocarbon types in petroleum products - Fluorescent indicator adsorption method

IP 160 - Crude petroleum and liquid petroleum products - Laboratory determination of density - Hydrometer method

IP 170 - Determination of flash point - Abel closed-cup method IP 216 - Determination of particulate contaminant of aviation turbine fuels by line sampling IP 274 - Determination of electrical conductivity of aviation and distillate fuels IP 323 - Determination of thermal oxidation stability of gas turbine fuels IP 336 - Petroleum products - Determination of sulfur content -

Energy-dispersive-X-ray fluorescence method IP 342 - Petroleum products – Determination of thiol (mercaptan) sulfur in light and middle distillate fuels – Potentiometric method

IP 354 - Determination of the acid number of aviation turbine fuels – Colour-indicator titration method

IP 365 - Crude petroleum and petroleum products – Determination of density – Oscillating U-tube method

IP 406 - Petroleum products – Determination of boiling range distribution by gas chromatography

MIL-DTL-25524H

IP 423 - Determination of particulate contaminant in aviation turbine fuels by laboratory filtration

IP 424 - Determination of fuel system icing inhibitor content of aviation turbine kerosines by high performance liquid chromatography

IP 435 - Determination of the freezing point of aviation turbine fuels by the automatic phase transition method

IP 436 - Determination of aromatic hydrocarbon types in aviation fuels and petroleum distillates – High performance liquid chromatography method with refractive index detection

IP 528 - Determination of the freezing point of aviation turbine fuels – Automated fibre optic method

IP 529 - Determination of the freezing point of aviation fuels – Automatic laser method

IP 534 - Determination of flash point – Small scale closed cup ramp method

IP 540 - Determination of the existent gum content of aviation turbine fuel - Jet evaporation method

IP 559 - Determination of density of middle distillate fuels - Hand held oscillating U-tube density meter method

IP 565 - Determination of the level of cleanliness of aviation turbine fuel - Portable automatic particle counter method

IP 577 - Determination of the level of cleanliness of aviation turbine fuel - Automatic particle counter method using light extinction

IP 598 - Petroleum Products – Determination of the smoke point of kerosine, manual and automated method

(Copies of these documents are available from https://www.energyinst.org/technical/publications.)

INTERNATIONAL ORGANIZATION FOR STANDARDIZATION (ISO)

ISO 4406 - Hydraulic fluid power - Fluids - Method for coding the level of contamination by solid particles

ISO 11171 - Hydraulic fluid power - Calibration of automatic particle counters for liquids

(Copies of these documents are available from https://www.iso.org.)

https://www.energyinst.org/technical/publications https://www.iso.org/

MIL-DTL-25524H

2.4 Order of precedence. Unless otherwise noted herein or in the contract, in the event of a conflict between the text of this document and the references cited herein, the text of this document takes precedence. Nothing in this document, however, supersedes applicable laws and regulations unless a specific exemption has been obtained.

3. REQUIREMENTS

3.1 Qualification. The thermally stable aviation turbine fuel furnished under this specification shall be product that is authorized by the qualifying activity for listing on the applicable qualified product list before contract award (see 4.2). Changes shall not be permitted in the formulation of an approved product unless specific, written approval by the qualifying activity is obtained.

3.2 Materials. Except as otherwise specified herein, the fuel shall consist completely of petroleum derived hydrocarbon compounds. Virgin, recycled, or reclaimed petroleum products may be used.

3.3 Chemical and Physical Requirements. The chemical and physical requirements of the finished fuel (hydrocarbon blend plus all additives listed herein) shall conform to the requirements listed in section 3 and Table I. Requirements contained herein are not subject to correction for test tolerance.

TABLE I. Chemical and physical requirements and test methods for JPTS.

Property Qualification 1/

Conformance 2/

Limits Test Methods or Test Paragraph

Referee Alternative WORKMANSHIP X X Pass 3.5

COMPOSITION

Color, Saybolt X X min +24 D156 D6045 Total acid number, mg KOH/g

X X max 0.015 D3242/

IP 354

Aromatics, volume percent

X X 5.0 to 20.0 D6379 /

IP 436

D1319, IP 156,

D8267, or D8305

Sulfur, Mercaptan, mass percent

X X max 0.001 D3227/

IP 342

or Doctor Test 3/ negative D4952 Sulfur, total, mass percent

X X max 0.30 D4294 D2622, D5453, D7039, or

IP 336

VOLATILITY

Distillation temperature, °C (D2887 limits in parenthesis) 4/

D86 5/ D2887, IP 406, or

IP 123

Initial boiling point X X min 157 (105)

10 percent recovered X X max 193 (174)

20 percent recovered X Report 30 percent recovered X Report 40 percent recovered X Report 50 percent recovered X X max 204

(207)

60 percent recovered X Report 70 percent recovered X Report 80 percent recovered X Report 90 percent recovered X X max 238

(250)

Property Qualification 1/

Conformance 2/

Limits Test Methods or Test Paragraph

Referee Alternative End point X X max 260

(288)

Residue, volume percent (D86 only)

X X max 1.5

Loss, volume percent (D86 only)

X X max 1.5

Flash point, °C 6/ X X min 43 D93 / IP 34 D56, D7236, IP 170, or

IP 534

Density, kg/L (API) at 15 °C

X X 0.767 (53.0) to 0.797 (46.0)

D4052 D1298, D7777 / IP

559, IP

160, or IP

FLUIDITY

Freezing point, °C X X max -53 D2386/

IP 16

D5972/

IP 435,

D7153/

IP 529,

D7154, or

IP 528

Viscosity, mm2/s at -40 °C

X X max 12.0 D445 D7042 7/ , D7945, or

IP 71

Section 1

COMBUSTION

Net heat of combustion, MJ/kg (BTU/lb)

X X min 42.8 (18,400)

D4809 D3338/ D3338M 8/, or IP 12 Hydrogen content, mass percent

X 9/ X min 14.00 D7171 D3343 10/, D3701, or

D5291 Smoke point, mm X X min 25.0 D1322/

IP 598

Naphthalenes, volume percent

X Report D1840

CORROSION

Copper strip corrosion, 2 hr at 100 °C

X X max 1b D130 IP 154

1/

Conformance 2/

Limits Test Methods or Test Paragraph

Referee Alternative

THERMAL

STABILITY

Thermal stability (2.5 hr at 335 °C)

D3241 /

IP 323

Change in pressure drop, mm Hg

X X

Qualification & acceptance testing max 10

All other testing max 25 Tube rating: average deposit thickness over area of 2.5 mm2, nm 11/

X X Annex A3

ETR

Annex A2 ITR or

Annex A4

MWETR

Qualification & acceptance testing max 40

All other testing max 85

CONTAMINANTS

Existent gum, mg/100 mL 12/

X X max 5 IP 540 D381

Particulate matter 13/ Particle counting, individual channel counts & ISO Code 14/

X D7619 IP 565 or IP

Channel Counts

ISO Code

≥ 4 μm(c) 15/ Report max 18 ≥ 6 μm(c) 15/ Report max 16 ≥ 14 μm(c) 15/ Report max 14 ≥ 30 μm(c) 15/ Report max 13

Gravimetric, mg/L 16/

X max 0.5 D5452 / IP

D2276/

IP 216

Microseparometer rating, min

X X min 70 D7224 D3948

STORAGE STABILITY

17/

1/

Conformance 2/

Limits Test Methods or Test Paragraph

Referee Alternative Hydroperoxides, 6 weeks at 65°C, mg/kg 18/

X max 8.0 D3703

Potential gums, 16 hr at 100°C, mg/100 mL

X max 7.0 D5304

LUBRICITY

Lubricity, wear scar diameter, mm

X Report D5001

ADDITIVES

Antioxidant X X Report type and concentration

3.4.1

Metal deactivator X X Report type used and concentration of the active ingredient

3.4.2

Fuel system icing inhibitor, vol. percent

X X 0.10 to 0.15 D5006 & 3.4.3

IP 424

JFA-5, mg/L X X 8.6 to 11.4 3.4.4 Corrosion inhibitor / lubricity improver

X X Report additive used and concentration

3.4.5

Electrical conductivity, pS/m

X Report D2624 /

IP 274 &

3.4.6

OTHER TESTING

Elements, µg/L 17/, 19/ X Report D7111

NOTES:

1. Only the referee test methods shall be used for qualification testing.

2. For acceptance testing, perform the testing per the requirements in the Conformance column.

3. If the Doctor Test results in a failure ('positive' result), then mercaptan sulfur content shall be determined by the referee test method ASTM D3227.

4. Distillation data shall be determined by either ASTM D86 or ASTM D2887. ASTM D2887

Appendix X4 (Correlation for Jet and Diesel Fuel (Procedures A and B)) conversions shall not be used to calculate approximated D86 data.

5. ASTM D86 distillation is run at Group 4 conditions except that Group 3 condenser temperatures are used.

1/

Conformance 2/

Limits Test Methods or Test Paragraph

Referee Alternative

6. Relative to ASTM D93, results obtained by Test Method: D56 can be up to 1.5 °C lower, IP 170 can be up to 1.0 °C lower, and D7236 (IP 534) can be up to 1.0 °C lower.

7. ASTM D7042 results shall be corrected to bias-free viscosity results by the application of the correction factor in the D7042 Precision and Bias section. [Check wording.]

8. For net heat of combustion estimations by ASTM D3338/D3338M:

(1) Distillation data used shall be determined by ASTM D86 or ASTM D2887. ASTM D7345 distillation data shall not be used.

(2) Aromatics content data shall be determined by ASTM D1319, ASTM D6379, ASTM D8267, or ASTM D8305. If ASTM D6379 data is used, results shall be multiplied by 25/26.5 to convert to ASTM D1319 compliant data.

(3) Density data shall be determined by ASTM D1298 or ASTM D4052.

9. For qualification testing of candidate JPTS, the hydrogen content requirement shall be determined by either ASTM D7171 (referee test method) or ASTM D3701.

10.

For hydrogen content estimations by ASTM D3343:

(1) Distillation data used shall be determined by ASTM D86 or ASTM D2887. ASTM D7345 distillation data shall not be used.

(2) Aromatics content data shall be determined by ASTM D1319.

(3) Density data shall be determined by ASTM D1298.

11. If the ITR reports "N/A" for the tube's volume measurement, the result constitutes a failure and the result shall be reported as either ">40 nm" (for qualification / acceptance testing) or ">85 nm" (all other testing). The ETR shall be the referee thermal stability heater tube deposit measurement procedure.

12. The preferred vaporizing medium for aviation turbine fuel is steam; however, the existent gum test IP 540 may be performed using air as the vaporizing medium. If air is used instead of steam, it shall be reported.

13. Particulate matter shall be determined by either particle counting or gravimetric. Particle counting shall be the referee particulate matter method.

14. Per Table 1 "Allocation of scale numbers" of ISO 4406.

15. The notation (c) indicates that the equipment has been calibrated in accordance with the latest version of ISO 11171.

16. A minimum sample size of 3.785 liters (1 gallon) shall be filtered.

17. The candidate fuel manufacturer shall have the ASTM D3703, ASTM D5304, and ASTM D7111 testing performed by a third-party laboratory.

18. For ASTM D3703: (i) air shall be used as the oven atmosphere (ii) initial hydroperoxide concentration data and at the end of each of the six weeks shall be reported.

19. The candidate fuel manufacturer shall have the ASTM D7111 testing performed by a third-party laboratory. The concentration for the following elements in µg/L, as tested using ASTM D7111, shall be reported:

Calcium (Ca) Chromium (Cr) Copper (Cu) Iron (Fe)

1/

Conformance 2/

Limits Test Methods or Test Paragraph

Referee Alternative Lead (Pb) Magnesium (Mg) Manganese (Mn) Molybdenum (Mo) Nickel (Ni) Phosphorus (P) Potassium (K) Sodium (Na) Tin (Sn) Titanium (Ti) Vanadium (V) Zinc (Zn)

3.4 Additives. The type and amount of each additive used shall be reported (see 6.2.c).

3.4.1 Antioxidants. Immediately after processing and before the fuel is exposed to the atmosphere, an approved antioxidant, or a combination of approved anti-oxidant formulations, shall be added to prevent the formation of gums and peroxides after manufacture. The concentration of antioxidant to be added shall be as follows: Not less than 17 mg or more than 24 mg of active ingredient per liter of fuel (6.0 pounds to 8.4 pounds of active ingredient per 1,000 barrels of fuel) to all JPTS fuel.

3.4.1.1 Approved antioxidants. The following antioxidant formulations are approved:

a. 2,6-ditertiary butyl-4-methylphenol

b. 2,4-dimethyl-6-tertiary butylphenol

c. 2,6-ditertiary butylphenol

d. 75 percent minimum 2,6-tertiary butylphenol

25 percent maximum tertiary and tritertiary butylphenols

e. 72 percent minimum 2,4-dimethyl-6-tertiary butylphenol

28 percent maximum monomethyl and dimethyl tertiary butylphenol

f. 55 percent min 2,4-dimethyl-6-tert-butylphenol and

15 percent min 2,6-di-tert-butyl-4-methylphenol and 30 percent max mixed methyl and dimethyl tert-butylphenols

3.4.2 Metal deactivator additive (MDA). MDA shall not be used in JPTS unless the supplier has obtained written consent from the Procuring Activity, AFPET, and end user. The quantity of MDA, which shall not exceed 5.7 mg of active ingredient per liter of fuel (2 pounds of active ingredient per 1,000 barrels of fuel), shall be declared by the fuel supplier and agreed to by the Procuring Activity, AFPET, and end user. A Certificate of Quality shall show the initial thermal oxidative stability test result, the result after the addition of the MDA, the concentration of MDA (both active ingredient and type used) added, and all results provided to Procuring Activity, AFPET, and end user. The following MDA active ingredient chemistries have been approved:

a. N,N’-disalicylidene-1,2-propanediamine

b. N,N’-disalicylidene-1,2-cyclohexanediamine

3.4.3 Fuel system icing inhibitor. The addition of 0.10 volume % to 0.15 volume % of fuel system icing inhibitor conforming to MIL-DTL-85470 shall be mandatory. The point of injection of the additive and the type of the additive shall be determined by agreement between the Procuring Activity and the supplier.

3.4.4 Special additive. The fuel shall contain from 8.6 mg/L to 11.4 mg/L of fuel (3 pounds/1,000 barrels of fuel to 4 pounds/1,000 barrels of fuel, respectively) of Innospec LLC JFA-5® additive.

3.4.5 Corrosion inhibitor/lubricity improver additive. A corrosion inhibitor/lubricity improver additive conforming to MIL-PRF-25017 and approved for JPTS (see 3.4.5.1) shall be blended into the fuel by the supplier. The amount added shall be equal to or greater than the minimum effective concentration and shall not exceed the maximum allowable concentration listed in QPL-25017. The supplier or transporting agency, or both, shall maintain, and upon request, make available to the Government evidence that the corrosion inhibitor/lubricity improver additive used is one of the additives listed in 3.4.5.1.

3.4.5.1 Approved corrosion inhibitor/lubricity improver additives. The following approved corrosion inhibitor/lubricity improver additives in QPL-25017 approved for JPTS are:

a. AVGUARD CI/LI®

b. NALCO 5403®

c. UNICOR J

3.4.6 Static dissipater additives. Static dissipater additives (SDA), which are also referred to as electrical conductivity additives, shall not be added to this fuel.

3.4.7 Premixing of additives. Additives shall not be premixed with other additives before injection into the fuel to prevent possible reactions among the concentrated forms of different additives.

3.5 Workmanship. At the time of Government acceptance, the finished fuel shall be clear, bright, and visually free from undissolved water, sediment, or suspended matter. In case of dispute, the fuel shall be clear and bright at 21 °C (70 °F).

3.6 Recycled, recovered, environmentally preferable, or biobased materials. Recycled, recovered, environmentally preferable, or biobased materials should be used to the maximum extent possible, provided that the material meets or exceeds the operational and maintenance requirements, and promotes economically advantageous life cycle costs.

4. VERIFICATION

4.1 Classification of inspection. The inspection requirements specified herein are classified as follows:

a. Qualification inspection (see 4.2).

b. Conformance inspection (see 4.3).

4.2 Qualification inspection. Qualification inspection shall consist of testing to all the requirements specified in section 3 and Table I. When required by the Qualifying Activity, additional evaluations may be required on candidate formulations.

4.2.2 Qualification inspection sample. When directed by Qualifying Activity, the supplier shall submit qualification samples representative of the candidate fuel. Qualification samples shall consist of three (3) one-gallon containers. Two (2) one-gallon containers of the fully additized fuel (including all required approved additives per this specification – antioxidants (3.4.1), FSII (3.4.3), JFA-5 (3.4.4), and CI/LI (3.4.5)) shall be submitted.

Additionally, one (1) one-gallon container of the base fuel without additives shall also be submitted. Refer to 4.3.2.1.1 for the sample containers to be used. Samples of the additives used in the formulation may also be requested by the qualifying activity.

4.2.2.1 Designated qualification testing laboratory. When directed by the Qualifying Activity, qualification inspection samples for testing are to be submitted to the Aerospace Fuels Laboratory, AFPET/PTPLA, 2430 C Street, Building 70, Area B, Wright-Patterson AFB, OH 45433.

4.3 Conformance inspection. Testing for the Government acceptance of individual lots / batches shall consist of tests for all requirements identified as Conformance in Table I. For Government acceptance conformance inspection testing, the contractor shall send one 3.8-liter (1-gallon) sample of each batch of fuel produced under any contract to a designated acquisition activity laboratory (4.3.1.1). For each lot / batch of fuel acquired under this specification, one copy of the certificate of analysis that lists those items in Table I shall be forwarded to the acquisition activity and the following organizations: Air Force Petroleum Office, 2430 C Street, Building 70, Area B Wright-Patterson AFB, OH 45433 or emailed to afpet.ptmt@us.af.mil and afpet.ptps@us.af.mil.

4.3.1.1 Designated conformance inspection testing laboratories. Acceptance inspection conformance samples for testing are to be submitted to one of the following laboratories:

a. Aerospace Fuels Laboratory, AFPET/PTPLA, 2430 C Street, Building 70, Area B, Wright-Patterson AFB, OH 45433.

b. DLA Energy Pyongtaek Petroleum Laboratory, APO AP 96271, Bldg. 848, Camp Humphreys, Republic of Korea.

c. DLA Energy Europe & Africa Petroleum Laboratory, Bldg. 320, Rhine Ordnance Barracks Am Opelkreisel 67663, Kaiserslautern, Germany.

mailto:afpet.ptmt@us.af.mil mailto:afpet.ptps@us.af.mil

4.3.2 Sampling plans.

4.3.2.1 Sampling for verification of product quality. Each representative bulk lot / batch (6.5) sample of fuel collected to be submitted for verification of fuel quality shall be obtained in accordance with ASTM D4057 or ASTM D4177.

4.3.2.1.1 Sample containers. A number of aviation turbine fuel properties are very sensitive to trace contamination that can originate from sample containers. Refer to ASTM D4306 for recommended sample containers.

4.3.3 Inspection. Refer to the contract or purchase order for specific inspection requirements.

4.4 Inspection conditions. Requirements contained in Table I are absolute, as defined in ASTM E29, and shall not be subject to correction for test tolerances. If multiple determinations are made, results falling within any specified repeatability and reproducibility tolerances may be averaged. For rounding off of significant figures, ASTM E29, Absolute Method, shall apply to all tests required by this specification.

4.5 Methods of inspection.

4.5.1 Examination of product.

4.5.1.1 Visual inspection. Samples selected in accordance with 4.3.1 shall be visually examined for compliance with 3.5.

4.5.2 Chemical and physical tests. To determine conformance to chemical and physical requirements (see 3.3), tests shall be conducted in accordance with the applicable test methods listed in Table I.

5. PACKAGING

5.1 Packaging. For acquisition purposes, the packaging requirements shall be as specified in the contract or order (see 6.2). When actual packaging of materiel is to be performed by DoD or in-house contractor personnel, these personnel need to contact the responsible packaging activity to ascertain packaging requirements. Packaging requirements are maintained by the Inventory Control Point’s packaging activities within the Military Service or Defense Agency, or within the military service’s system commands. Packaging data retrieval is available from the managing Military Department’s or Defense Agency’s automated packaging files, 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 not mandatory.)

6.1 Intended use. The fuel covered by this specification is intended for use in aircraft turbine engines. JPTS fuel requires military-unique additives that are necessary in military weapon systems. This requirement is unique to military aircraft, engine designs, and missions.

6.2 Acquisition requirements. Acquisition documents should specify the following:

a. Title, number, date of this specification, and grade (type) of fuel.

b. Quantity required.

c. Location, injection method, and type of additives, as required.

6.3 Conversion of metric units. Units of measure have been converted to the International System of Units (SI) (Metric) in accordance with IEEE/ASTM SI10 American National Standard for Metric Practice. If test results are obtained in units other than metric or there is a requirement to report dual units, IEEE/ASTM SI10 should be used to convert the units.

6.4 Safety Data Sheets. Contracting officers will identify those activities requiring copies of completed SDS prepared in accordance with FED-STD-313 Material Safety Data, Transportation Data, and Disposal Data for Hazardous Materials Furnished to Government Activities. The pertinent Government mailing addresses for submission of data are listed in

FED-STD-313.

6.5 Definitions.

6.5.1 Bulk lot/batch. A bulk lot/batch consists of an indefinite quantity of a homogeneous mixture of material offered for acceptance in a single isolated container, or refined in a single refinery run, through the same processing equipment, with no change in ingredient material.

6.5.2 Finished fuel. Final blend of a complex mixture of hydrocarbons, with additives, provided for specification acceptance.

6.6 Subject term (key word) listing.

Additive Antioxidant Corrosion Inhibitor / Lubricity Improver (CI/LI) Flash point Freezing point Fuel system icing inhibitor Hydrocarbon distillate Hydrogen content Jet fuel

Metal deactivator

6.7 Changes from previous issue. Marginal notations are not used in this revision to identify changes with respect to the previous issue due to the extent of the changes.

a. Main changes in MIL-DTL-25524H: The intent of MIL-DTL-25524H is to add qualification requirements (Qualification column in Table I) for approval of candidate

JPTS.

CONCLUDING MATERIAL

Custodians:

Air Force – 68

DLA – PS

Preparing activity:

Air Force – 68 (Project 9130-2025-002)

Review activities:

Air Force – 11, 20

NOTE: The activities listed above were interested in this document as of the date of this document. Since organizations and responsibilities can change, you should verify the currency of the information above using the ASSIST Online database at https://assist.dla.mil.

https://assist.dla.mil/

METRIC