JetFuel Series

Jet A and Jet A-1 are kerosene-type fuels. The primary difference between the two is freeze point, the temperature at which wax crystals disappear in a laboratory test.

Jet A, which is mainly used in the United States, must have a freeze point of minus 40ºC or below and does not typically contain static dissipator additive. Jet A-1 must have a freeze point of minus 47ºC or below and for locations outside the United States, this fuel normally contains static dissipator additive. There are other key differences between the manufacturing specification within the United States and Europe/Africa/Middle East/Australasia.

ExxonMobil Jet A and ExxonMobil Jet A-1 meet the requirements of ASTM D1655 Standard Specification for Aviation Turbine Fuels. ExxonMobil Jet A-1 also complies with U.K. DEF STAN 91-091, and the JIG (Joint Inspection Group) Aviation Fuel Requirements for Jointly Operated Systems (Check List). Jet A-1 manufactured to Def. Stan. 91-091 has a higher max limit for acidity and additional requirement for lubricity.  In all cases, the most recent issue of relevant specifications applies to the product supplied.

 

Specifications and Approvals

ExxonMobil Jet A meets the following industry specifications:

ExxonMobil Jet A

ExxonMobil Jet A-1

ASTM D 1655

X

X

 

Military

ExxonMobil Jet A

ExxonMobil Jet A-1

Approved against Mil U.K. DEF STAN 91-091

Not applicable

X

Approved against Mil and the JIG (Joint Inspection Group) Aviation Fuel Requirements for Jointly Operated Systems (Check List)

Not applicable

X

 

Properties and Specifications

ASTM D1655 and Def. Stan 91-091 (Unless otherwise noted)

 

Jet A

Jet A-1

Acidity, mg KOH/g

0.10 Max.

0.10 Max. (0.15 Max for Def. Stan 91-091)

Aromatics, Vol. %

25 Max.

25 Max.

Sulphur, mercaptan, Wt. %

0.003 Max.

0.003 Max.

Sulphur, total, Wt. %

0.30 Max.

0.30 Max.

10% Distillation, ºC

205 Max.

205.0 Max.

Final Boiling Point, ºC

300 Max.

300 Max.

Distillation Residue, %

1.5 Max.

1.5 Max.

Distillation Loss, %

1.5 Max.

1.5 Max.

Flash Point, ºC

38 Min.

38 Min.

Density @ 15ºC, kg/m3

775 to 840

775 to 840

Freeze Point, ºC

-40 Max

-47 Max

Viscosity @ -20ºC, mm/s

8.0 Max.

8.0 Max.

Net Heat of Combustion, MJ/kg

42.8 Min.

42.8 Min.

One of the following shall be met:

 

 

1) Smoke Point, mm, or

25.0 Min.

25.0 Min.

2) Smoke Point, mm, and

18.0 Min.

18.0 Min.

Naphthalenes, Vol. %

3.0 Max

3.0 Max.

Copper Strip Corrosion, 2 h % 100ºC

No. 1 Max.

No. 1 Max.

Thermal Stability @ 260ºC:

 

 

-Filter pressure drop, mm Hg

25 Max.

25 Max.

-Tube Deposits

< 3 Max.

< 3 Max.

Existent Gum, mg/100 mL.

7 Max.

7 Max.

MSEP Rating

 

 

-Without electrical conductivity additive

85

85

-With electrical conductivity additive

70

70

Electrical conductivity, pS/m

 

50 Min. 600 Max.

Health and safety

Health and Safety recommendations for this product can be found on the Material Safety Data Sheet (MSDS) @ http://www.msds.exxonmobil.com/psims/psims.aspx