… the present invention relates to systems and methods of filling containers with ultra pure
liquids in a manner that minimizes the amount of particles generated in the liquid. the presence
of an air-liquid interface in the container has been shown to increase the particle concentration
observed in the liquid. … a second method of reducing particle generation in an ultra pure
liquid is to fill containers for the liquid, of the type including a liner and a rigid overpack, by
first collapsing the liner, and filling the collapsed liner. Filling the container according to this …

B67D7/02—Apparatus or devices for transferring liquids from bulk storage containers or
reservoirs into vehicles or into portable containers, eg for retail sale purposes for transferring
liquids other than fuel or lubricantsB67D7/0238—Apparatus or devices for transferring
liquids from bulk storage containers or reservoirs into vehicles or into portable containers, eg
for retail sale purposes for transferring liquids other than fuel or lubricants utilising
compressed air or other gas acting directly or indirectly on liquids in storage containers