Jet A1 (written Jet A-1) is the standard kerosene-grade aviation turbine fuel used by commercial aviation worldwide. For buyers entering the aviation-fuel trade, understanding the specification is essential — off-spec jet fuel simply cannot be used, so quality assurance is everything.
What Jet A1 is
Jet A-1 is a highly refined kerosene meeting the DEF STAN 91-091 (UK) and ASTM D1655 (international) specifications. It is prized for a low freeze point (max −47°C), which suits long international flights, and a controlled flash point for safe handling. Because aviation tolerances are tight, every batch carries a certificate of quality and is confirmed by independent inspection.
Representative specification
| Property | Typical limit | Note |
|---|---|---|
| Flash point | min 38°C | ASTM D93 |
| Freeze point | max −47°C | Jet A-1 grade |
| Density @ 15°C | 775–840 kg/m³ | ASTM D1298 |
| Sulphur | max 0.30 wt% | Often far lower |
Our full commercial terms are on the Jet A1 product page.
What Jet A1 is used for
Jet A-1 powers the gas-turbine engines of commercial and cargo aircraft. Buyers range from airports and into-plane fuellers to resellers and distributors serving aviation markets. Because it is a safety-critical product, the supply chain is document-heavy by design.
Jet A1 vs Jet A
Jet A is a similar grade used mainly in the United States, with a higher freeze point (max −40°C). For international operations, Jet A-1 is the norm. The differences are covered in Jet A1 vs Jet A.
Buying Jet A1 with confidence
Insist on a batch certificate plus SGS/Intertek inspection, a written CIF/FOB procedure, and KYC on both sides. Never pay upfront "verification" fees.
Frequently asked questions
What specification is Jet A1?
DEF STAN 91-091 and ASTM D1655, with a batch certificate and independent inspection confirming the parcel.
Can you deliver Jet A1 CIF or FOB Rotterdam?
Yes — both. Confirm your port and Incoterm on our contact page.