LAC 43:XIII.925. Design of Copper Pipe [49 CFR 192.125]

A. Copper pipe used in mains must have a minimum wall thickness of 0.065 inches (1.65 millimeters) and must be hard drawn. [49 CFR 192.125(a)] B. Copper pipe used in service lines must have wall thickness not less than that indicated in the following table. [49 CFR 192.125(b)] Standard Size Inch (millimeter) | Nominal O.D. Inch (millimeter) | Wall Thickness Inch (millimeter) Standard Size Inch (millimeter) | Nominal O.D. Inch (millimeter) | Nominal | Tolerance 1/2 (13) | .625 (16) | 0.040 (1.06) | 0.0035 (0.0889) 5/8 (16) | .750 (19) | 0.042 (1.07) | 0.0035 (0.0889) 3/4 (19) | .875 (22) | 0.045 (1.14) | 0.004 (0.102) 1 (25) | 1.125 (29) | 0.050 (1.27) | 0.004 (0.102) 1 1/4 (32) | 1.375 (35) | 0.055 (1.40) | 0.0045 (0.1143) 1 1/2 (38) | 1.625 (41) | 0.060 (1.52) | 0.0045 (0.1143) C. Copper pipe used in mains and service lines may not be used at pressures in excess of 100 psi (689 kPa) gauge. [49 CFR 192.125(c)] 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 60ºF and 14.7 psia (15.6ºC and one atmosphere) of gas. [49 CFR 192.125(d)]