scope:

This standard encompasses the design and performance requirements for flexible sprinkler hose with threaded end fittings for their intended application of connecting the sprinklers in a clean room, commercial suspended ceiling, or duct to the sprinkler piping.

A commercial suspended ceiling is a type of ceiling used predominately in Light Hazard Occupancies. It is also used less frequently in Ordinary Hazard Occupancies. A typical commercial suspended ceiling system is a "TBar Grid". In a T-Bar Grid ceiling, a metal component with an inverted "T" cross-section is used to secure and support acoustical lay-in panels.

Rigid furring channel is another type of commercial ceiling system.

Other applications shall be evaluated on a case-by-case basis. In cases where metric sized flexible sprinkler hose with threaded end fittings are to be examined for Approval, test criteria comparable to the equivalent or nearest nominal inch size shall be used.

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 flexible sprinkler hose with threaded end fittings for use in clean rooms, commercial suspended ceilings, and ducts. Other applications shall be evaluated on a case-by-case basis.

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.