# Temperature Derating Factor (T) for Steel Pipe [49 CFR 192.115]

- **operation:** document
- **citation:** LAC 43:XIII §915
- **title:** Temperature Derating Factor (T) for Steel Pipe [49 CFR 192.115]
- **source type:** regulation
- **agency:** Louisiana Office of Conservation
- **status:** current
- **official:** true
- **published on:** Not available
- **effective on:** Not available
- **summary:** A. The temperature derating factor to be used in the design formula in §905 is determined as follows. Gas Temperature in Degrees Fahrenheit (Celsius) Temperature Derating Factor (T) 250F (121C) or less 1. 000 300F (149C) 0. 967 350F (177C) 0. 933 400 F (204C) 0. 900 450F (232C) 0. 867 B. For interme
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**body:**

A. The temperature derating factor to be used in the design formula in §905 is determined as follows.

Gas Temperature in Degrees Fahrenheit (Celsius)

Temperature Derating Factor (T)

250F (121C) or less

1. 000

300F (149C)

0. 967

350F (177C)

0. 933

400 F (204C)

0. 900

450F (232C)

0. 867

B. For intermediate gas temperatures, the derating factor is determined by interpolation. [49 CFR 192.115]

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

HISTORICAL NOTE: Promulgated by the Department of Natural Resources, Office of Conservation, LR 9:222 (April 1983), amended LR 10:514 (July 1984), LR 20:444 (April 1994), LR 27:1538 (September 2001), LR 30:1231 (June 2004).
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