% ISINAC ACOUSTIC WORLD S.L.U. - ISINAC ISTORE IZZER + 100 mm cavity
% Absorption coefficient, one-third octave bands, EN ISO 354.
% Test report: B2023-LACUS-IN-195-3, Fundacion Tecnalia R&I
% Columns: frequency (Hz), absorption coefficient (-). Values may exceed 1 (edge effect).
% Use as an Interpolation function in COMSOL (Ray Acoustics / Acoustic Diffusion Equation).
% alpha_w 0.50 (MH) per ISO 11654 clause 4.3. It is strongly recommended to use this single-number rating together with the complete absorption curve.

100 0.040
125 0.060
160 0.080
200 0.140
250 0.180
315 0.300
400 0.390
500 0.510
630 0.620
800 0.710
1000 0.770
1250 0.770
1600 0.660
2000 0.520
2500 0.620
3150 0.660
4000 0.640
5000 0.660
