I have procedure written and signed by the client with step by step instructions that state we will pressure up to keep the test pressure above the minimum. My problem is we have TPI that come onsite and argue that we are not allowed to pressure up, but they can't tell me where it says I can't...
If I can determine that its not a leak and its the temperature that is fluctuating causing my pressure to go down or up than I should be able to increase my pressure (and not restart time) before it goes below my minimum test pressure. My interpretation on a hydro test is that you are testing...
A847.4 Test Procedure
(c) [highlight #FCE94F]maintenance[/highlight] of the test and recording of results
on pipeline and assemblies for a minimum of eight continuous
hours at or above the specified pressure. All
variations in test pressure shall be accounted for. Test
duration of prefabricated...
