Changes to this Second Edition reflect the myriad of improvements in the practice of safety in the chemical lab during the last three years. Changes due to the promulgation of the OSHA Laboratory Standard (U.S.), the Workplace Hazardous Materials Information System (Canada), and the Control of Substances Hazardous to Health Regulations (U.K.) are reflected in this edition. A new chapter on personal protective equipment has been added. Appendices treat the hazards of handling flammable, reactive, corrosive, toxic and physical materials; the precautions that laws and regulations that must be incorporated into lab work; the protection of persons through air monitoring and protective equipment; and the essentials of space design for minimizing laboratory hazards.