Gypsum plasterboards. Definitions, requirements and test methods Ingestion-build-183098 BS 978-2 on double circular

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Gypsum plasterboards. Definitions, requirements and test methods Ingestion-build-183098 BS 978-2 on double circular1 Scope This document specifies the characteristics and performance of gypsum plasterboards intended to be used in building construction works including those intended for secondary manufacturing operations. It includes boards designed to receive either direct surface decoration or gypsum plaster. This document covers the following product performance characteristics: reaction to fire, water vapour permeability, flexural strength (breaking load),