F-F-310B, FEDERAL SPECIFICATION: FILTER, AIR CONDITIONING: VISCOUS-IMPINGEMENT AND DRY MEDIA, REPLACEABLE (02-JUN-1984) [S/S BY A-A-1419]
F-F-310B, FEDERAL SPECIFICATION: FILTER, AIR CONDITIONING: VISCOUS-IMPINGEMENT AND DRY MEDIA, REPLACEABLE (02-JUN-1984) [S/S BY A-A-1419]., This specification covers throw-away, panel-type air filters designed for arresting particulate matter, in air-conditioning, heating, and ventilating systems in which the face velocity of the air stream is approximately 350 feet per minute (fpm) (1.78 meters per second (m/s)).