BS EN 12440 is the European standard on natural stone products including terminology, test methods and product standards.
BS EN 12440 establishes the criteria for the designation of natural stone from raw material to finished products.
BS EN 12440 on natural stone is useful for:
The International marketing of natural stone has introduced a great number of names to designate the different varieties of stone.
BS EN 12440 specifies the denomination of natural stone that includes the name of the natural stone, petrological family/group, typical colour and place of origin.
BS EN 12440 determines the process conditions, natural features, petrographic name and geological age of natural stone.
Overall, BS EN 12440 unifies the designation criteria of natural stone varieties, maintaining the traditional names that are important for the appearance and colour of the stone surface to be durable and for the rock to withstand weathering and discoloration often lasting for decades with very little maintenance.
EN 12440:2017