NF EN ISO 717-2:2020

This document a. defines single-number quantities for impact sound insulation in buildings and of floors, b. gives rules for determining these quantities from the results of measurements carried out in one-third-octave bands in accordance with ISO 10140-3 and ISO 16283-2, and in octave bands in accordance with that option in ISO 16283-2 for field measurements only, c. defines single-number quantities for the impact sound reduction of floor coverings and floating floors calculated from the results of measurements carried out in accordance with ISO 10140-3, and d. specifies a procedure for evaluating the weighted reduction in impact sound pressure level by floor coverings on lightweight floors.