Jet Fuel Services
Jet A-1 Supply Coordination Worldwide

What Is Jet A-1?
Jet A-1 is the international standard aviation turbine fuel used at virtually every commercial airport outside the United States. It is a refined kerosene-type fuel produced to specification DEF STAN 91-091 (the primary international standard) and ASTM D1655 (the American standard). Key technical characteristics:
- Fuel type: Kerosene-based aviation turbine fuel
- Freeze point: maximum -47°C (the key difference from the US-standard Jet A, which has a -40°C freeze point)
- Flash point: minimum 38°C
- Used in: all commercial turbofan, turbojet, and turboprop aircraft certified for Jet A-1
- Standard bodies: DEF STAN 91-091 (UK/international), ASTM D1655, IATA Guidance Material

Jet A vs Jet A-1 — What's the Difference?
Jet A and Jet A-1 are both kerosene-type aviation turbine fuels, but they differ in freeze point. Jet A-1 has a freeze point of -47°C; Jet A has a less stringent freeze point of -40°C. Jet A-1 is the global standard used outside the United States. Jet A is the predominant grade within the United States and is generally not available at international locations. Most commercial aircraft are certified to use both grades, but operators routing from US domestic operations to international destinations should confirm fuel grade availability at intermediate stops.
ASM's Jet Fuel Coordination
3,000+ Airport Locations
ASM's fuel coordination network covers major airline hubs, cargo airports, business aviation facilities, and remote airfields worldwide. Operators can use ASM as a single point of contact for Jet A-1 coordination across their entire route network.
Transparent Pricing
Every fuel quote from ASM includes a full cost breakdown: base fuel price, into-plane fees, airport taxes, throughput charges, and any applicable surcharges. No post-invoice surprises. All components are detailed before the arrangement is confirmed.
All Major Fuel Credit Cards Accepted
ASM links operators with suppliers across the network that accept all major aviation fuel credit cards — simplifying payment for operators with established fuel card programmes.
24/7 Availability
ASM's fuel team is available 24 hours a day for both routine and urgent fuel requests. For last-minute or diversion-related fuel requirements, the team responds immediately.
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FAQs - Jet Fuel Services
Q: What is Jet A-1?
A: Jet A-1 is the international standard aviation turbine fuel used outside the United States for virtually all commercial, cargo, charter, and business jet aircraft. It is a kerosene-based fuel defined under DEF STAN 91-091 and ASTM D1655, with a freeze point of -47°C.
Q: Is Jet A-1 the same as kerosene?
A: Jet A-1 is a highly refined kerosene-type fuel — more refined and more precisely specified than domestic heating kerosene. Both are kerosene in their chemical base, but aviation-grade Jet A-1 meets strict purity, additive, and performance standards that domestic kerosene does not.
Q: What is the difference between Jet A and Jet A-1?
A: Both are kerosene aviation turbine fuels, but Jet A-1 has a lower freeze point (-47°C vs -40°C for Jet A). Jet A-1 is the international standard. Jet A is predominantly used within the United States and is not widely available at international airports.
Q: What is the DEF STAN 91-091 specification?
A: DEF STAN 91-091 is the UK Ministry of Defence standard that defines the specification for Jet A-1 aviation turbine fuel. It is the primary international specification for Jet A-1 and is used alongside ASTM D1655 and IATA Guidance Material across the global aviation industry.
Q: Can ASM coordinate Jet A-1 at remote airports?
A: Yes. ASM's network includes remote and challenging locations. Availability and lead times for fuel at remote airports vary — contact the team to confirm specific locations.
Q: Does ASM arrange Jet A-1 for business jets and private aviation?
A: Yes. ASM's jet fuel coordination service covers all operation types — commercial airlines, cargo, charter, business jets, and VVIP private aviation.
Q: What is an aviation fuel into-plane fee?
A: An into-plane fee (also called a fuelling fee or service charge) is the fuel supplier's charge for physically delivering fuel from storage to the aircraft. It is separate from the base fuel price and is itemised in all ASM fuel quotes.
Q: How quickly can ASM arrange fuel for a short-notice operation?
A: ASM's 24/7 fuel team responds immediately to urgent requests. Confirmation time depends on the airport and supplier, but the team contacts suppliers directly and provides a turnaround time estimate as quickly as possible.
Q: Is AvGas the same as Jet A-1?
A: No. AvGas (Aviation Gasoline) is a completely different fuel used only by piston-engine aircraft. Jet A-1 is for turbine-engine (jet and turboprop) aircraft. Using AvGas in a turbine engine would cause severe damage. ASM coordinates Jet A-1 for turbine aircraft; AvGas coordination is available on request for piston aircraft.
Contact ASM — Available 24/7
Email: sales@asm.aero | Call: +971 4 409 7755 | WeChat: ASMDXB
