2015 年 2015 巻 269 号 p. 201-208
Activated carbon is commonly used as a sampling agent in small glass tube products for the measurement of organic solvent vapor concentrations in the work environment as established by the Industrial Safety and Health Act in Japan. The extraction efficiency of adsorbed organic solvent vapor from the activated carbon significantly affects the measurement accuracy. We have investigated the properties of activated carbon used in typical Japanese sampling tube products, and the effects on the efficiency as determined by the phase equilibrium method. This study focused particularly on N2-BET specific surface area, grain diameter and the precursor materials of the activated carbon.
