OSHA cites employer for doing pneumatic pressure testing rather than hydrostatic pressure testing (5A1 – Fatality)
On July 14, 2009, Employees #1 and #2 were performing a pneumatic test to verify leak tightness of a new pipeline meter station. The test medium was nitrogen gas, and the system being tested included piping and two (2) pressure vessels. Numerous leaks were found in the system during the test. The system reached the…...