scope:

This standard encompasses the design and performance requirements for strainers for use with water based fire protection systems.

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 Approval criteria for strainers for use with water based fire protection systems. Strainers addressed in this standard are used to entrap foreign materials which may otherwise enter the system and plug spray nozzles or sprinkler heads. Strainers addressed in this standard may contain screen size openings between 1/8 inch (3.2 mm) and ¼ inch (6.5 mm).

Approval 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.