This European Standard specifies the characteristics and performance of products which have been produced from gypsum plasterboards manufactured according to prEN 520 by reprocessing. Reprocessing may include cutting, perforating, edge profiling, decorating and laminating membranes of other materials for functional or decorative purposes, attaching fixings including supports e.g. for partitions. A fuller list of reprocessing operations is given i Annex B.Gypsum plasterboards subject to reprocessing operations may be suitable for extended applications such as suspended ceilings providing sound absorption, flooring, self decorative finishes, low emissivity ch