Historical
ANSI/ASME B31.5-2006
Refrigeration Piping and Heat Transfer Components
This Code prescribes requirements for the materials, design, fabrication, assembly, erection, test, and inspection of refrigerant, heat transfer components, and secondary coolant piping for temperatures as low as -320°#xb0;F (-196°#xb0;C), whether erected on the premises or factory assembled, except as specifically excluded in the standard.
American Society of Mechanical Engineers [asme]