New DEFSTAN 91-091

AVIATION FUELS: Testing to the new issue of DEFSTAN 91-091 

What are the changes?

  • Allowing "less than" reporting for freeze point below than -65 degree C
  • FAME <50 mg/l and DRA (72ug/l 'undetectable') limits included as part of Product Integrity Management
  • Inclusion of HiTec 4547 AvGuard SDA as an approved additive
  • Added ASTM D7945 for viscosity measurement
  • Inclusion of ASTM D7566 (additional requirements applicable to jet fuels containing synthetic fuel components)
  • Added an Incidental Materials table similar to ASTM D1655
  • Referencing EI/JIG for product quality management up-stream of airport. 

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