scope:

This standard sets performance requirements for automatic and open water-spray nozzles in the following product categories and class numbers:

Each system is designed and calculated for the hazard, and each nozzle is chosen for its specific discharge capacity and spray angle.

Approval Standards are intended to verify that the product described will meet stated conditions of performance, safety and quality useful to the ends of property conservation.

Purpose

This standard states FM Approvals criteria for automatic and open water-spray nozzles installed in permanently piped systems which are intended to protect a hazard that cannot adequately be protected by a conventional sprinkler system.

FM Approvals criteria may include, but are not limited to, performance requirements, marking requirements, examination of manufacturing facility(ies), audit of quality assurance procedures, and a follow-up program.

In addition to the performance requirements listed in this standard, applicable subsections of Section 4, of the Approval Standard Class 2000, Automatic Control Mode Sprinklers for Fire Protection, may apply.