Hawaii Administrative Rules
Title 6 - DEPARTMENT OF BUDGET AND FINANCE
Division - PUBLIC UTILITIES COMMISSION
Chapter 77 - TRANSPORTATION OF NATURAL AND OTHER GAS BY PIPELINE; MINIMUM SAFETY STANDARDS
Subchapter 4 - MINIMUM SAFETY STANDARDS - MATERIALS
Section 6-77-26 - Transportation of pipe
Current through August, 2024
In a pipeline to be operated at a hoop stress of twenty percent or more of SMYS, an operator may not use pipe having an outer diameter to wall thickness ratio of seventy to one, or more, that is transported by railroad unless:
(1) The transportation is performed in accordance with the 1972 edition of API RP5L1, except that before February 25, 1975, the transportation may be performed in accordance with the 1967 edition of API RP5L1.
(2) In the case of pipe transported before November 12, 1970, the pipe is tested in accordance with subchapter 12 to at least 1.25 times the maximum allowable operating pressure if it is to be installed in a Class 1 location and to at least 1.5 times the maximum allowable operating pressure if it is to be installed in a Class 2, 3, or 4 location. Notwithstanding any shorter time period permitted under subchapter 12, the test pressure must be maintained for at least eight hours.
