Latest posts
-
Test records retained for the life of the pipeline
49 CFR 192.517 and 195.310 require pressure test records for the life of the pipeline. What belongs in the record and why the deliverable matters.
-
The documentation an operator should demand from any testing contractor
A specific list of what should arrive at the end of a pressure test, and why a one-page certificate is not enough given life-of-line retention rules.
-
Class locations and what they do to your test pressure
Class location is set by what is around the pipeline, and it governs test factors and gas-medium stress caps. How it changes what a test can prove.
-
49 CFR 192.505 and 195.304 compared: gas and liquid test requirements
Gas transmission and hazardous liquid pipelines have different test requirements. The durations, the multiples of operating pressure, and what drives the difference.