scope:

This standard provides the minimum requirements for the design, installation, and system acceptance testing of water spray fixed systems for fire protection service and the minimum requirements for the periodic testing and maintenance of ultra-high-speed water spray fixed systems.

Water spray fixed systems shall be specifically designed to provide for effective fire control, extinguishment, prevention, or exposure protection.

This standard shall not apply to water spray protection from portable nozzles, sprinkler systems, monitor nozzles, water mist suppression systems, explosion suppression, or other means of application covered by other standards of NFPA.

Purpose. The purpose of this standard shall be to provide the minimum requirements for water spray fixed systems based on sound engineering principles, test data, and field experience.