ACGIH 23
ACGIH 23 : American Conference of Governmental Industrial Hygienists. An organization of professionals in governmental agencies or educational institutions engaged in occupational safety and health programs. ACGIH develops and publishes recommended occupational exposure limits for chemical substances and physical agents. (6500 Glenway Ave., Bldg. D-7, Cincinnati, OH. 45211; [513661-7881.)