(1) Stainless steel tube shall conform to,
(a) ASME B16.9, “Factory-Made Wrought Buttwelding Fittings”, and
(b) ASTM A269, “Seamless and Welded Austenitic Stainless Steel Tubing for General Service”.
(2) Only grade 304/304L or 316/316L stainless steel tubes shall be used.