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System S 3 (Exposed grid, demountable)OWAcoustic-Mineral wool panels are free from harmful materials such as asbestos and formaldehyde. A statement from the German institute for Building Technology is available. The mineral wool used in these panels is biodegradable. The criterions of the zero-ranking as a carcinogenic material in the chemical prohibition ordinance (§ 1 appendix) section 23 bio-persistent fibres is complied with and therefore carries the “RAL-Seal of mineral wool” guarantees. |