This websites use cookies. By continuing to browse the site you are agreeing to our use of cookies. For more details about cookies and how to manage them, see our cookie policy.

Jet A1

Jet A-1 is a type of aviation fuel most commonly used for commercial aircraft powered by gas-turbine engines. Jet A-1 is a standardized international specification and must meet DEF STAN 91-91, ASTM specification D1655 & IATA Guidance Material (Kerosene Type), NATO Code F-35.

JOINT FUELLING SYSTEM CHECK LIST FOR JET A-1

Download Full specification  
TEST METHOD
Property Limits IP ASTM Remarks
APPEARANCE
Visual appearance Clear, bright and visually free from solid matter and un-dissolved water at ambient fuel temperature
Colour Report D 156 or D 6045 See Note 1
Particulate contamination mg/L Max 1.0 423 D 5452 See Note 2
Particulate, cumulative channel particle counts, ISO Code & Individual Channel Counts 564 or 565 or 577 See Note 3
≥ 4 μm(c) Report
≥ 6 μm(c) Report
≥ 14 μm(c) Report
≥ 21 μm(c) Report
≥ 25 μm(c) Report
≥ 30 μm(c) Report
COMPOSITION
Total Acidity, mg KOH/g Max 0.015 354 D 3242 See Note 4
Aromatics, % v/v. Max 25.0 156 D 1319
OR Total Aromatics, % v/v Max 26.5 436 D 6379 See Note 5
Sulphur, Total, % m/m Max 0.30 336 D 1266 or D 2622 or D 4294 or D 5453
Sulphur, Mercaptan, % m/m Max 0.0030 342 D 3227
OR Doctor Test Negative 30 D 4952 See Note 6
Refinery Components at point of manufacture: See Note 7
Non Hydroprocessed Components, %v/v Report (incl. 'nil' or '100%’)
Mildly Hydroprocessed Components, % v/v Report (incl. 'nil' or '100%’)
Severely Hydroprocessed Components, % v/v Report (incl. 'nil' or '100%’)
Synthetic Components, %v/v Report (incl. ‘nil’ or ‘50%’) See Note 4 for limits for synthetic components
INCIDENTAL MATERIALS
Fatty Acid Methyl Ester (FAME), mg/kg Max 50 585 or 583 or 590 or 599 ASTM D7797 See Notes 8, 9 and 10
VOLATILITY
Distillation 123 D86 or D7345., See Note 11
Initial Boiling Point, ºC Report
Fuel Recovered See Note 11
10% v/v at ºc Max 205.0 Or IP 406 or D 2887
50% v/v at ºC Report see Note 12
90% v/v at ºC Report
End Point, ºC Max 300.0
Residue, % v/v Max 1.5
Loss, % v/v Max 1.5
Flash Point, ºC Min 38.0 170 or 523 D 56 or D 3828
Density at 15ºC, kg/m³ 775.0 min to 840.0 max 160 or 365 D 1298 or D 4052 See Note 13
FLUIDITY
Freezing Point, ºC Max -47.0 16 or 435 or 528 or 529 D 5972 or D 7153 or D 7154 See Note 14
Viscosity at -20ºC, mm2/s(cSt) Max 8.000 71 D 445 or D7042, See Note 15
COMBUSTION
Specific Energy, net, MJ/kg Min 42.80 12 or 355 D 3338 or D 4809 See Note 16
Smoke Point, mm Min 25.0 598 D 1322 See Note 17
OR
Smoke Point, mm Min 18.0 598 D 1322 See Note 17
AND Naphthalenes, % vol Max 3.00 D 1840
CORROSION
Corrosion, Copper strip, classification (2 hours +/- 5 min. at 100 ºC +/- 1ºC) Max 1 154 D 130
STABILITY
Thermal Stability (JFTOT) 323 D 3241 See Note 18
Control temperature, ºC Min 260 323 D 3241 See Note 18
Filter Pressure Differential, mm Hg Max 25
One of the following requirements shall be met:
(1) Annex B VTR Less than 3, no 'Peacock' or 'Abnormal' colour deposits
(2) Annex C ITR or Annex D ETR, average over area of 2.5mm² Max 85
CONTAMINANTS
Existent Gum, mg/100ml Max 7 540 D 381
Microseparometer (MSEP), rating
Fuel with Static Dissipator Additive Min 70 D 3948 See Note 19
OR
Fuel without Static Dissipator Additive Min 85
CONDUCTIVITY
Electrical Conductivity, pS/m 50 min to 600 max 274 D 2624 See Note 20
LUBRICITY
BOCLE wear scar diameter, mm Max 0.85 D 5001 See Note 21
ADDITIVES (Names and approval code from DEF STAN 91-091/9 should be quoted on quality certificates).
Antioxidant, mg/l (in final batch Max 24.0 See Note 22
in hydroprocessed & synth. fuels (Mandatory) Min 17.0 See Note 23
in non-hydroprocessed fuels (Optional) Ma 24.0 See Note 24
Metal Deactivator, mg/l (Optional) *
First Doping Max 2.0
Cumulative concentration after field re-doping Max 5.7
Static Dissipator, mg/l*
First Doping Max 3.0
Cumulative concentration after field re-doping Max 5.0

Notes

Key Facts

£1.2BN

Mabanaft (UK) has an average turnover of £1.2 billion