DEF in FSII Test
DEF in FSII Test Procedure-patent pending-Feb 2020
The aviation industry has recently encountered the problem of DEF (diesel exhaust fluid) contamination in FSII (fuel system icing inhibitor). Therefore, a need exists to determine if FSII is free of DEF prior to addition of FSII to aviation fuel. THIS IS NOT A FUEL TEST.
This test covers the detection of DEF in FSII in a range of 1-100 %.
1. Using the supplied pipette, dispense approximately 2 mL of FSII sample into the supplied clear vial.
2. Empty the contents of the supplied reagent capsule (approximately ½ g) into the vial. Caution-it is important that you follow the order of step 1 and 2.
3. Place stopper lid on vial.
4. Shake vial vigorously for approximately 30 seconds. Contents should have a uniform consistency.
5. If an immediate blue color change is observed, this is a positive indicator of DEF contamination in the range of 10-100 %.
6. If there is no immediate blue color change, place vial on a level surface and allow to sit for approximately 5 minutes.
7. Observe the reagent settling reaction in the vial as follows:
8. Uniform white cloudy - indicative of no DEF contamination.
9. Clear sample on top portion of vial, white settling on bottom or slight blue color change-indicative of DEF contamination in the range of 1-10 %.
Significance and Use
The above procedure provides a rapid, visible test to ascertain significant DEF contamination (1-100%) of FSII. DEF and FSII are both clear and appear similar to water. There is no other known test to determine if they have been mixed.
THIS IS NOT A FUEL TEST. IT IS NOT FEASIBLE TO TEST FOR DEF IN JET FUEL.
Get Updates From Emcee
Blog: Technical Insights
Got A Question?
Give Us A Call!