Determination of protection time for benzene vapor and chloroethane vapor
The protection time refers to the time interval during which an air flow containing a certain vapor concentration is continuously passed through the activated carbon sample layer under specified experimental conditions, from the beginning of the passage until the permeation concentration reaches the specified value. This time interval is used as the protection time of the activated carbon against a certain vapor. The determination of protection time for benzene vapor and chloroethane vapor is an effective method for evaluating protection performance.
