DS DS/EN ISO 140-12
DS DSEN SO 140-12 2000-MAR-15 Acoustcs - Measurement of sound nsulaton n buldngs and of buldng elements - Part 12 Laboratory measurement of room-to-room arborne and mpact sound nsulaton of an access floor
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This standard specifies a laboratory method to measure the airborne and impact sound insulation of an access floor with a plenum of defined height mounted below an acoustical barrier which separates two rooms of a specified test facility.