Abstract: A pressure relief panel (1) for a vessel is mounted within a frame (11, 17) in the vessel wall. The panel (1) has a flap (3) which bursts open on predetermined over (or under) pressure within the vessel. The periphery of the flap (3) is at least partly defined by discontinuous edge slots or groove (5) with spaced interruptions (7). Outboard of each interruption (7) is a further slot (9) parallel to edge slot (5). Typically the edge slots are inboard of the edge (21) of the frame (11, 17) and sealed by a T-shaped sealing strip (22) which covers both slots.

Abstract: A container for fluids intended for use on a standard pallet, the container being formed of an outer fibreboard skin with an inner fluid-tight flexible bag, a series of posts each located vertically in the middle of a face of the container between the fibreboard skin and the flexible bag with a series of tension struts interlocating the upper and lower ends of the posts to prevent the bag expanding the container. The container is suitable for handling liquids or dry powder type fluids and can accommodate weights of the order of one ton while being easily dismantleable for despatch or storage. The container can be stacked three or more high.