What are regulations for Dry Chemical powder as fixed Fire Extinguishing system?

Note :

Drawings of the system and details of the dry chemical powder are to be submitted to the Society for approval.

Fire extinguishing unit having two or more monitors, hand hose lines, or combinations thereof, shall have independent pipes with a manifold at the powder container, unless a suitable alternative means is provided to ensure proper performance as approved by the Society. Where two or more pipes are attached to a unit the arrangement shall be such that any or all of the monitors and hand hose lines are capable of simultaneous or sequential operation at their rated capacities.