Manufacturing Standards:
Copper water tubes, as well as related products and joining methods, must meet strict requirements and specifications for health effects and performance. Our products meet the following:

ANSI/NSF 61
Drinking water system components-health effects: This is the health standard for all plumbing products and materials that come into direct contact with potable water. Copper water tubes, copper fittings, as well as copper and brass plumbing valves and fixture must meet NSF standard 61. This standard specifies that the copper tube be evaluated at a pH of 6.5, rather than a pH of 5 or 10 as for other material types.

ANSI/ASME B16.22
Wrought copper and copper alloy solder-joint pressure fittings: As the name implies, this specification encompasses elbows, tees and other solder type fittings used to join standard plumbing tubes together. The copper used in these products has an identical 99.9% purity as does a standard copper water tube.

ASTM B32
Standard specification for solder metal: This specification covers solder components used to join copper tubes and fittings. Today's plumbing solder components are lead free.

ASTM B88
Standard specification for seamless copper water tube: This specification covers copper UNS No. C12200 seamless copper water tubes that are suitable for general plumbing and similar applications, for the conveyance of fluids. It is specifically covering solder, flared and compression type fittings. This type of copper water tube is also suitable for any application as determined by the internal or external fluid pressure, installation and service conditions, as well as local requirements. The method for joining or bending are also factors that influence how this type of tube can be used.