Fumigant system

摘要

A fumigant composition comprising a pressurized mixture of a diluent gas and phosphine in predetermined proportions within a container adapted for release of gaseous fumigant. A method of preparing the composition comprises the steps of pumping a predetermined quantity of phosphine under pressure into the container and filling the container with a liquified diluent gas. A method of fumigating a substantially closed space by liberating the composition is also disclosed.