Device for providing a relatively constant rate of dissolution of a solid article within it

摘要

A device for providing a relatively constant rate of dissolution of a solid article (2) within it has one or more opening (22) to allow the passage of water. There is a flow pathway between said one or more openings and the solid article, which flow pathway is obturated by a water-permeable packing (26), through which water must pass, in entering or leaving the device.