T-DRILL is in compliance with the newly issued ASME B31.9 - 2004. Section 930.2 Mechanically Formed Extruded Outlets in Copper Tube specifies the process and provides reference, also, to ASTM F 2014 and pressure calculations. ASME B31.9 - Building Services Piping is the umbrella standard for most of the pressure piping installed in North America.