Excerpts
変3280.705
(b) * * *
(1) Steel or wrought-iron pipe shall comply with ASME B36.10 (incorporated by reference, see 変3280.4). Threaded brass pipe in iron pipe sizes may be used. Threaded brass pipe shall comply with ASTM B43. (incorporated by reference, see 変3280.4).
(3) Copper tubing must be annealed type, Grade K or L, conforming to ASTM B88 (incorporated by reference, see 変3280.4), or must comply with the ASTM B280 (incorporated by reference, see 変3280.4). Copper tubing must be internally tinned.
(5) Corrugated stainless steel