This standard describes the reduced-pressure principle backflow prevention assembly for potable water applications. The purpose of this standard is to provide the minimum requirements for reduced-pressure principle backflow prevention assemblies for potable water applications, including materials, general and detailed design, workmanship, and shipping and delivery.

This standard can be referenced in documents for purchasing and receiving reduced-pressure principle backflow prevention assemblies for potable water assemblies. The requirements of this standard apply when this document has been referenced and then only to reduced-pressure principle backflow prevention assemblies.