FLOOR COVERING STANDARD SYMBOLS

Acoustics — Measurement of sound absorption in a reverberation room (ISO 354) EN ISO 717-2 Acoustics — Rating of sound insulation in buildings and of building elements — Part 2: Impact sound insulation (ISO 717-2) EN ISO 10874 Resilient, textile and laminate floor coverings — Classification (ISO 10874) EN ISO 11654 ................
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