(1)  Filling density shall be limited to 85 percent capacity by volume at 60 degrees F.

(2)  The filling densities for nonrefrigerated containers by weight shall not exceed the following:

                     Aboveground   Underground

(a)  Uninsulated            56%            58%

(b)  Insulated             57%

(c)  Containers regulated by department of transportation shall be filled in accordance with Hazardous Materials Transportation Regulations (Subch. C, ARM 171.6)  .

(3)  The filling density for refrigerated storage tanks shall be such that the tanks will not be liquid full at a liquid temperature corresponding to the vapor pressure at the start-to-discharge pressure setting of the safety relief valve.