30 C.F.R. § 75.1101-19 Nozzles; flow rate and direction.
Title 30 - Mineral Resources
The nozzles of each dry powder chemical system shall be capable of discharging all powder within 1 minute after actuation of the system and such nozzles shall be directed so as to minimize the effect of ventilation upon fire control.
Title 30: Mineral Resources
PART 75—MANDATORY SAFETY STANDARDS—UNDERGROUND COAL MINES
Subpart L—Fire Protection
§ 75.1101-19 Nozzles; flow rate and direction.
