Stratification.

Current as of 1999-10-01 Government source

Pipeline and Hazardous Materials Safety AdministrationOfficial agency material

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LNG storage tanks with a capacity of 5,000 barrels (795 cubic meters) or more must be equipped with means to mitigate a potential for rollover and overpressure such as:

(a) Selective filling at the top and bottom of the tank;

(b) Circulating liquid from the bottom to the top of the same tank; or

(c) Transferring liquid selectively from the bottom of the tank to the bottom or top of any adjacent storage tank.

[45 FR 9203, Feb. 11, 1980, as amended by Amdt. 193-16, 63 FR 37505, July 13, 1998]