49 C.F.R. § 192.125 Design of copper pipe.
Title 49 - Transportation
(a) Copper pipe used in mains must have a minimum wall thickness of 0.065 inches (1.65 millimeters) and must be hard drawn. (b) Copper pipe used in service lines must have wall thickness not less than that indicated in the following table: (c) Copper pipe used in mains and service lines may not be used at pressures in excess of 100 p.s.i. (689 kPa) gage. (d) Copper pipe that does not have an internal corrosion resistant lining may not be used to carry gas that has an average hydrogen sulfide content of more than 0.3 grains/100 ft3 (6.9/m3 ) under standard conditions. Standard conditions refers to 60°F and 14.7 psia (15.6°C and one atmosphere) of gas. [35 FR 13257, Aug. 19, 1970, as amended by Amdt. 192–62, 54 FR 5628, Feb. 6, 1989; Amdt. 192–85, 63 FR 37502, July 13, 1998]
Title 49: Transportation
PART 192—TRANSPORTATION OF NATURAL AND OTHER GAS BY PIPELINE: MINIMUM FEDERAL SAFETY STANDARDS
Subpart C—Pipe Design
§ 192.125 Design of copper pipe.
------------------------------------------------------------------------ Wall thickness inch (millimeter)Standard size inch Nominal O.D. inch --------------------------------- (millimeter) (millimeter) Nominal Tolerance------------------------------------------------------------------------ \1/2\ (13) .625 (16) .040 (1.06) .0035 (.0889) \5/8\ (16) .750 (19) .042 (1.07) .0035 (.0889) \3/4\ (19) .875 (22) .045 (1.14) .004 (.102) 1 (25) 1.125 (29) .050 (1.27) .004 (.102) 1\1/4\ (32) 1.375 (35) .055 (1.40) .0045 (.1143) 1\1/2\ (38) 1.625 (41) .060 (1.52) .0045 (.1143)------------------------------------------------------------------------
