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 7 - MINIMUM SAFETY STANDARDS - WELDING OF STEEL IN PIPELINES
Section 6-77-80 - Inspection and test of welds
Universal Citation: HI Admin Rules 6-77-80
Current through August, 2024
(a) Visual inspection of welding must be conducted to insure that:
(1) The welding is performed in accordance
with the welding procedure; and
(2)
The weld is acceptable under subsection (c);
(b) The welds on a pipeline to be operated at a pressure that produces a hoop stress of twenty percent or more of SMYS must be nondestructively tested in accordance with section 6-77-81, except that welds that are visually inspected and approved by a qualified welding inspector need not be nondestructively tested if:
(1)
The pipe has a nominal diameter of less than six inches; or
(2) The pipeline is to be operated at a
pressure that produces a hoop stress of less than forty percent of SMYS and the
welds are so limited in number that nondestructive testing is
impractical.
(c) The acceptability of a weld that is nondestructively tested or visually inspected is determined according to the standards in section 6 of API Standard 1104.
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