Respirator cartridge test system and test results for benzene and acrylonitrile

NIOSH approves organic vapor respirator cartridges based upon testing against 1000 parts per million carbon tetrachloride vapors. Data for other organic vapors are necessary for proper use of organic vapor cartridge respirators against those vapors. This paper describes a system designed to test respirator cartridges and canisters and results of cartridge tests against benzene and acrylonitrile at a variety of concentrations.