# Design of Copper Pipe [49 CFR 192.125]

- **operation:** document
- **citation:** LAC 43:XIII §925
- **title:** Design of Copper Pipe [49 CFR 192.125]
- **source type:** regulation
- **agency:** Louisiana Office of Conservation
- **status:** current
- **official:** true
- **published on:** Not available
- **effective on:** Not available
- **summary:** 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 (mi
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- **source url:** https://www.doa.la.gov/doa/osr/louisiana-administrative-code/
**body:**

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)

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)]

AUTHORITY NOTE: Promulgated in accordance with R.S. 30:501 et seq.

HISTORICAL NOTE: Promulgated by the Department of Natural Resources, Office of Conservation, LR 9:223 (April 1983), amended LR 10:515 (July 1984), LR 18:855 (August 1992), LR 27:1539 (September 2001), LR 30:1232 (June 2004).
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