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18-29-705.6 Concrete joints.
   Joints between concrete pipe or fittings shall be made with an elastomeric seal conforming to ASTM C443, ASTM C1173, CSA A257.3 or CSA CAN/CSA B602.
18-29-705.7 Copper pipe.
   Joints between copper or copper-alloy pipe or fittings shall comply with Sections 18-29-705.7.1 through 18-29-705.7.5.
18-29-705.7.1 Brazed joints.
   All joint surfaces shall be cleaned. An approved flux shall be applied where required. The joint shall be brazed with a filler metal conforming to AWS A5.8.
18-29-705.7.2 Mechanical joints.
   Mechanical joints shall be installed in accordance with the manufacturer's instructions.
18-29-705.7.3 Soldered joints.
   Solder joints shall be made in accordance with the methods of ASTM B828. All cut tube ends shall be reamed to the full inside diameter of the tube end. All joint surfaces shall be cleaned. A flux conforming to ASTM B813 shall be applied. The joint shall be soldered with a solder conforming to ASTM B32.
18-29-705.7.4 Threaded joints.
   Threads shall conform to ASME B1.20.1. Pipe joint compound or tape shall be applied on the male threads only.
18-29-705.7.5 Welded joints.
   All joint surfaces shall be cleaned. The joint shall be welded with an approved filler metal.
18-29-705.8 Copper tubing.
   Joints between copper or copper-alloy tubing or fittings shall comply with Sections 18-29-705.8.1 through 18-29-705.8.3.
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