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Joints between copper or copper-alloy pipe tubing or fittings shall comply with Sections P3003.6.1 through P3003.6.4.
P3003.6.1 Brazed Joints
All joint surfaces shall be cleaned. An approved flux shall be applied where required. Brazing materials shall have a melting point in excess of 1,000°F (538°C). Brazing alloys filler metal shall be in accordance with AWS A5.8.
P3003.6.2 Mechanical Joints
Mechanical joints shall be installed in accordance with the manufacturer's instructions.
P3003.6.3 Soldered Joints
Copper and copper-alloy joints shall be soldered in accordance with ASTM B828. Cut tube ends shall be reamed to the full inside diameter of the tube end. Joint surfaces shall be cleaned. Fluxes for soldering shall be in accordance with ASTM B813 and shall become noncorrosive and nontoxic after soldering. The joint shall be soldered with a solder conforming to ASTM B32.
P3003.6.4 Threaded Joints
Threads shall conform to ASME B1.20.1. Pipe-joint compound or tape shall be applied on the male threads only.

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P3003.6 Sanitary Drainage, Copper and Copper-Alloy Pipe and Tubing
Joints between copper or copper-alloy pipe tubing or fittings shall comply with Sections P3003.6.1 through P3003.6.4 ...
P3003.6 Sanitary Drainage, Copper and Copper-Alloy Pipe and Tubing
Joints between copper or copper-alloy pipe tubing or fittings shall comply with Sections P3003.6.1 through P3003.6.4 ...