(1)
Copper tube shall conform to,
(a)
ASTM B88, “Standard Specification for Seamless Copper Water Tube,” or
(b)
ASTM B306, “Standard Specification for Copper Drainage Tube (DWV).”
(2)
Except as provided in Sentence (3), the use of copper tube shall conform to Table 2.2.7.4.
Table 7.2.7.4. Permitted Use of Copper Tube and Pipe
Forming Part of Sentences 7.2.7.1.(1) and 7.2.7.4.(2)
Notes to Table 7.2.7.4.:
(1) P = Permitted and N = Not Permitted.
(3)
Copper tube shall not be used for the fixture drain or the portion of the vent pipe below the flood level rim of a urinal.
(4)
Copper tube used in a plumbing appliance shall conform to
(a)
ASTM B88, “Standard Specification for Seamless Copper Water Tube,” or
(b)
ASTM B68 / B68M, “Standard Specification for Seamless Copper Tube, Bright Annealed.”
(5)
Type K or L copper tube shall be used for the potable water side of a heat exchanger in a pre-engineered wastewater 5eat recovery system.