La. Admin. Code tit. 43 § XIII-915

Current through Register Vol. 50, No. 12, December 20, 2024

Section XIII-915 - Temperature Derating Factor (T) for Steel Pipe [49 CFR 192.115]

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)
250 ° F (121 ° C) or less	1.000
300 ° F (149 ° C)	0.967
350 ° F (177 ° C)	0.933
400 ° F (204 ° C)	0.900
450 ° F (232 ° C)	0.867

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

La. Admin. Code tit. 43, § XIII-915

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).

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