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IP 583 APPROVED FOR DEFSTAN 91-91 & ASTM D1655

10/11/2014

FIJI now included in Jet Fuel Specifications

ASTM D1655, Defence Standard 91-91 and EI/JIG standard 1530 , the specifications for Aviation Turbine Fuels, AVTUR, Jet A, and Jet A-1, have been updated to allow the new 50mg/kg FAME limit and now include IP 583 and ASTM D7797.

CHANGES TO ASTM D1655

  • Table 3 Incidental Materials has been updated and the level of FAME permitted in JET fuel has been increased from 5 mg/kg to 50mg/kg.
  • An emergency release of 100 mg/kg is permitted when authorized by the airframe and engine manufacturers.
  • Table 3 includes the FIJI Rapid Screening methods, IP 583 / ASTM D7797, as accepted test methods for the new 50mg/kg FAME level.
  • The levels may increase to 100 mg/kg after two years, once the industry has been able to evaluate the field performance of fuels with higher FAME levels.
  • Download ASTM D1655

CHANGES TO DEF STAN 91-91

  • Table 1 Incidental Materials will include a maximum of 50 mg/kg with an emergency release of 100 mg/kg.
  • Table 2 includes the FIJI Rapid Screening methods, IP 583 / ASTM D7797, as accepted test methods for the new 50mg/kg level.
  • From 2nd May 2015 FAME measurement will become a mandatory part of recertification which is conducted at the upstream supply terminals and prior to movement to airport.
  • FAME tests are now mandated in DefStan 91-91.
  • Download DEF STAN 91-91

CHANGES TO JOINT FUELLING SYSTEM CHECKLIST

Bulletin No.76 - Aviation Fuel Quality Requirements for Jointly Operated Systems (AFQRJOS) - has been issued with new guidance on specification changes and a revised Joint Fuelling System Checklist.

  • The revised 50 mg/kg limit is effective 2nd May 2015
  • FIJI Methods - IP 583 / ASTM D7797 are authorised tests in the Joint Fuels Checklist
  • The FIJI method is the only analysis that can screen all FAME types
  • Learn More

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