New 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.

https://www.ipl.co.nz/aviation-fuels-analysis