What sound absorption tests were conducted for Snowsound®?

Sound absorption testing was conducted by Istituto Giordano using the (UNI EN) ISO 354:2003 standard, obtaining CLASS A sound absorption according to ISO 11654 standards. This ISO 354 test is comparable to ASTM C423 (Standard Test Method for Sound Absorption and Sound Absorption Coefficients by the Reverberation Room Method).

Additional sound absorption testing was done by Laboratoria Di Acoustica of MATERIACOUSTICA, a research and engineering lab specialized in acoustics and vibration according to ISO 10534-2, which is comparable to ASTM C384 (Standard Test Method for Impedance and Absorption of Acoustical Materials by Impedance Tube Method).

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