Advisory Circular - Federal Aviation Administration

The earliest use of dry chemical in aircraft fire fighting included the use of sodium bicarbonate-based products. Today, the U.S. airport fire fighting industry relies almost exclusively on the use of potassium-based chemicals as auxiliary extinguishing agents due to their compatibility with AFFF agents and their reliable fire performance. 1.2.2.2 Halotron® I. Subsequent to the U.S. decision ... ................
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