jet a-1 - lower freeze point





Jet A-1 is a kerosene grade of fuel suitable for most turbine engine aircraft. It is produced to a stringent internationally agreed standard, has a flash point above 38°C (100°F) and a freeze point maximum of -47°C. It is widely available outside the U.S.A. Jet A-1 meets the requirements of British specification DEF STAN 91-91 (Jet A-1), (formerly DERD 2494 (AVTUR)), ASTM specification D1655 (Jet A-1) and IATA Guidance Material (Kerosine Type), NATO Code F-35.

DIFFERENCES BETWEEN JET A AND JET A-1  The primary difference is the lower freezing point of A-1:

  • Jet A's is −40 °C (−40 °F)
  • Jet A-1's is −47 °C (−53°F)

The other difference is the mandatory addition of an anti-static additive to Jet A-1.

Typical physical properties for Jet A and Jet A-1   Jet A-1 fuel must meet:

  • DEF STAN 91-91 (Jet A-1),
  • ASTM specification D1655 (Jet A-1), and
  • IATA Guidance Material (Kerosene Type), NATO Code F-35.

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