Hi. We are building a new tank farm and we are having now some problems with our Instrument Air lines testing. They were designed to be threaded and pneumatic tested. The issue is that the construction company is having problems with the criteria of zero leaks during the test (1.1 the Design Pressure, which is 1300kPa). They want to reduce the test to 1.1 the Operation Test (800kPa to 1000kPa). Is there any kind of an acceptance criteria for leakage during testing? Thanks.
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