Abstract
The service life of organic vapor cartridges was determined for ten vapors at concentrations between 50 and 3000 ppm. The breakthrough time (tb) conformed to the empirical expression tb = aCb, where C is the concentration in ppm and a and b are constants. The average value for b at 10% breakthrough was — 0.67 ± 0.17. The service life is inversely proportional to flow rate for acetone and benzene.