neonstingray
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I'm curious about this. Are you guys saying that during a hydro a tank can be tested at even higher pressures and thereafter be rated at a + pressure?
Information on getting a plus rating for old steel 72's in SoCal
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Dr. Lecter
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It's a standard hydro test, but what the data collected from the test has to show (Rejection Elastic Expansion number) is different for the + rating versus a regular pass. If nobody knows what the REE number is for a given tank's + rating, they can't give the tank a + because they don't know if it hit that target.
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