Determining Organic Vapor Cartridge Breakthrough Characteristics of JP-8During Aircraft Fuel Tank Entry Operations

This study assessed the service life of organic vapor cartridges exposed to Jet Propulsion Type 8 fuel vapor. Two experiments were conducted that involved exposing 45 cartridges to three challenge concentrations (300, 600, and 1200 pans per million) of fuel vapor and two relative humidity levels (50 and 80 percent). The impact on service life of (1) high relative humidity conditions and (2) prior static exposure to fuel vapor were evaluated. This study concluded that the 80 percent relative humidity test condition had a statistically significant effect on breakthrough time versus the 50 percent relative humidity condition, reducing service life by as much as 60 percent at the lowest challenge concentration tested. However, this effect was not statistically significant at the highest concentration. Prior exposure to fuel vapor also had a statistically significant impact on service life, but the shift in breakthrough time was minimal and would have a minor impact on cartridge change- out schedule planning.Air Force Inst of Tech Wright-Patterson AFB OH is the author of 'Determining Organic Vapor Cartridge Breakthrough Characteristics of JP-8During Aircraft Fuel Tank Entry Operations', published 2000 under ISBN 9781423534549 and ISBN 1423534549.