(A) Any backflow prevention assembly required herein shall be a model and size approved by the city. The term “Approved Backflow Prevention Assembly” shall mean an assembly that has been manufactured in full conformance with the standards established by the American Water Works Association entitled: “AWWA C506-84 Standards for Reduced Pressure Principle and Double Check Valve Prevention Devices” and have met completely the laboratory and field performance specification of a recognized laboratory for Cross-Connection Control, and Hydraulic Research.
(B) Backflow preventers which may be subjected to backpressure or backsiphonage that have been fully tested and have been granted a Certificate of Approval by said qualified laboratory and are listed on the laboratory's current list of “Approved Backflow Prevention Assemblies” may be used without further test or qualification.
('63 Code, § 5-10.107) (Ord. 469-C.S., passed 5-5-88)