Patent ID: 6616769
Filing Date: 2003-09-09
Classification: B08B

Abstract:
A method of conditioning a bulk container for storing a charge of an ultra high purity liquified gas, the container having at least one wall with an interior surface bounding a hollow interior, said method comprising:(A) providing a conditioning quantity of the ultra high purity liquified gas into the interior of the container so that a gas space is created above the level of said conditioning quantity of liquified gas therein; (B) imposing a temperature difference on the container to cause said conditioning quantity of liquified gas to produce vapor in said gas space; and (C) enabling said vapor to condense on the interior surface of the container, without the use of a condenser, whereupon liquid reflux is created, said liquid reflux serving to wash the interior surface of the container to condition it so that the container is ready to accept for storage therein the charge of ultra high purity liquified gas.