The weld is now certified by a Quality Assurance representative, and released for installation. The final test of the weld will come when the section of the pipeline is hydrostatically tested. The pipe will be filled with water and pressure tested to 125% of the maximum operating pressure for 24 hours., 1976-07, PCA0002-2b-48, Folder: PCA0002-2b. Alyeska Pipeline Service Company : Trans-Alaska Pipeline Construction Collection, 1976-1977, PCA 2. Alaska State Library - Historical Collections Finding Aids. https://alaska.libraryhost.com/repositories/2/archival_objects/17547 Accessed February 22, 2025.