The purpose of this guide is to provide the industrial user with supplemental information on various practices developed over time, which are designed to promote the safe handling of eight chlorosilanes i.e.: dimethyldichlorosilane, methyltrichlorosilane, trimethylchlorosilane, methyldichlorosilane, vinyltrichlorosilane, phenyltrichlorosilane, trichlorosilane and silicon tetrachloride.