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SS-EN 12057:2015
Natural stone products - Modular tiles - Requirements (Swedish Standard)
This European Standard specifies requirements for flat modular tiles of natural stone which are made for internal (including enclosed public transport premises) and/or external uses as floorings, stairs and wall and ceiling finishes. This European Standard does not cover mineral aggregates and artificial agglomerated stone material and does not cover installation.
Swedish Standards Institute [sis]