Perhaps of greater consequence, the rule pertains to another type of tank that has a floating roof, which rises and falls like a piston as it’s filled with or emptied of petroleum products.

External floating single-roof tanks should not be used to store gasoline in hot regions unless the deck plate's thickness exceeds 10 mm and it has been treated with an anti-corrosion coating.

The tank has a floating roof designed to move up and down with the level of naphtha inside to prevent the substance from vaporizing. The roof can be lowered to six feet above the floor of the tank ...

Manama, Apr. 23 (BNA): Bapco Refining released the following statement regarding updates on the oil tank leak situation: "Bapco Refining would like to report that the damaged floating roof of one of ...

"It was discovered that the external floating roof of Tank G346 had material on top of the roof and in the dike area," the refinery said in a statement to the Texas Commission on Environmental ...