The value of a particular hold time during a hydrotest cannot be determined in terms of pipeline integrity because the consequences of holding cannot be measured, making any specified hold time of the ...

Following an initial round of pressure testing, Line 5 owner Enbridge says the pipeline’s condition looks good. Over the weekend Enbridge conducted hydro tests on one line. They say it passed the ...

Enbridge's successful high-pressure water test of one of its twin oil pipelines in the Straits of Mackinac indicates "the underwater pipe appears to be robust," according to an independent pipeline ...