food processing steam kettles / fire line chemical additives / pressure principle device / secondary pumping systems / pressure principle devices / compact device / backpressure devices / devices / trouble-free devices / backflow devices / Car wash installation / dependable devices / Typical agricultural and industrial applications / home photograph chemicals / proper device / reduced pressure principle devices / /
Organization
American Society of Sanitary Engineers ASSE / University of California Foundation for Cross-Connection Control and Hydraulic Research / American Water Works Association / /
Chapter Four Methods and Devices for the Prevention of Backflow and Back-Siphonage