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Defstan 9191
As the benchmark particle counter for use in measuring the levels
of contamination in fuels, the ACM20, as per the UK’s Energy
Institute test method IP 564, has now been included in the DEFSTAN
9191 Jet Fuel Specification as a report only test alongside the
current Gravimetric test method (IP423 or ASTM D5452) and Clear & Bright
Visual test method (IP216 or ASTM D2276).
Defstan 9191 information >
