Abstract
A method to construct a permeation tube of vinyl chloride was described. The constructed tube was held in a water jacket, temperature of which was controlled by circulating water from a thermoregulated water bath, and a clean air diluent flew through the jacket to prepare air-gas mixture stream of known concentration. The concentration of vinyl chloride in the stream was determined gas chromato-graphically and a fairly good linearity was observed between the calculated con-centration and chromatographic peak height. An apparent activation energy of permeation was calculated from temperature dependency of permeation rate.
