Historical
ANSI/ASME A112.18.7-1999
Deck Mounted Bath/Shower Transfer Valves with Integral Backflow Prevention
This Standard establishes requirements for deck mounted, bath/shower transfer valves with integral backflow protection on the secondary outlets. It covers physical and performance requirements, test methods, and requirements for marking and identification. The provisions of this Standard are not intended to prevent the use of any alternative material or method of construction, provided any such alternative meets the intent of this Standard.
American Society of Mechanical Engineers [asme]