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New DEF in FSII Field Test Provides Another Layer of Protection in Contamination Prevention

The DEFKit®, available now through Gammon Technical Products (GTP) is a simple to use field test for detecting Diesel Exhaust Fluid in Fuel System Icing Inhibitor (FSII). Developed by Emcee Electronics — a leading supplier of laboratory instruments for aviation fuel testing — the new DEFKit® can detect DEF contamination levels in FSII as low as 2%.

According to GTP’s Bulletin 181, the test can be performed by mechanics or pilots and is recommended for use after each refilling of the FSII additive reservoir on refueling equipment. It requires no specialized training or instrumentation.

It’s important to note that the DEFKit® is not a fuel test, but rather detects DEF in neat FSII. According to Allan Barberio of Emcee Electronics the number one question they get is “why can’t you find DEF in fuel?” Allan points out that “due to the insolubility of DEF in jet fuel, testing the fuel for the presence of DEF is not feasible.”  

NATA offers a free operational best practice on DEF Handling and Contamination Prevention and has DEF contamination prevention training available through its Safety 1st Training Center. The new DEFKit® can be ordered through Gammon Technical Products, and for more information and additional resources on preventing DEF contamination, visit NATA’s DEF Awareness Page.

This story was originally published in NATA News Vol. 19 Issue 35 on September 7, 2020.