These Cabinets are designed to comply with AS 2714 and have a sump capacity equal to the total of the contents of the cabinet. They are designed so that in the event of an explosion the doors will open outwards. For this reason the maximum capacity of a cabinet is 100kg or 100l.
Justrite Manufacturing has been working on continually improviong their cabinets. Here is a link to explain the features and dimensions of the Justrite Storage Cabinet Range.