Historical
ANSI/ASME A112.4.7-2002
Point of Use and Branch Water Sub-metering Systems (Reaffirmed 2008)
Establishes the physical and accuracy requirements, and test methods which pertain to point of use and branch sub-metering systems applied in the plumbing system downstream of the main utility meter at the point of use or in a branch line serving a single residence.
American Society of Mechanical Engineers [asme]