Service Life of Respirator Cartridges at Various Concentrations of Common Organic Solvents

摘要

A series of tests was conducted to determine the service life of respirator cartridges for 20 commonly-used laboratory solvents. These solvents were tested at 1, 5, and 10 times the Threshold Limit Value (TLV) concentrations. The results conformed to the Freundlich isotherm and compared favorably to breakthrough times calculated from the adsorption isotherm and modified Wheeler equation. Cartridge life for solvents at concentrations other than those tested can be estimated from the constants which were derived from the experimental data. (ERA citation 06:005490)