LAC 33:V.30304. Test Pressure [49 CFR 195.304]

A. The test pressure for each pressure test conducted under this Chapter must be maintained throughout the part of the system being tested for at least four continuous hours at a pressure equal to 125 percent, or more, of the maximum operating pressure and, in the case of a pipeline that is not visually inspected for leakage during the test, for at least an additional four continuous hours at a pressure equal to 110 percent, or more, of the maximum operating pressure. [49 CFR 195.304]