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oil tank leak detection

Posted by: Chang Gui ning , E-mail: slcgn@mail.slof.com, on December 12, 2001 at 08:25 :

hello!

I have a question. Why the leak detection method the state-of-art can detect the minimum leak rate 0.2gallon per hour.
for example, a big oil tank that holds 50000 tons of oil. 1 mm represents 3 tons oil. To measure 1 mm level is difficult.

whish an answer. thank you!



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