This standard describes the double check-valve backflow prevention assembly for potable water applications. The purpose of this standard is to provide the minimum requirements for double check-valve 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 double check-valve backflow prevention assemblies for potable water applications. The requirements of this standard apply when this document has been referenced and then only to double check-valve backflow prevention assemblies.