Specifies requirements and procedures designed to protect persons from laser radiation. Intended for application both by users and manufacturers of laser products. It specifies safe working levels of optical radiation, classifies lasers according to their degree of hazard and sets out detailed protective and control measures appropriate to each class. A statement on the effect of laser radiation on biological tissues is given in an Appendix, and other appendices cover maximum permissible exposures, calculations, a medical surveillance chart, and the design of warning labels and signs. It is based on, but not equivalent to IEC 825-1:1993.