% ISINAC ACOUSTIC WORLD S.L.U. - ISINAC CURTAIN PX500 1 capa + 300 mm cavity
% Absorption coefficient, one-third octave bands, EN ISO 354.
% Test report: 115541-1, 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 0.80 (H) per ISO 11654 clause 4.3. It is strongly recommended to use this single-number rating together with the complete absorption curve.

100 0.160
125 0.250
160 0.340
200 0.530
250 0.710
315 0.760
400 0.810
500 0.710
630 0.690
800 0.700
1000 0.730
1250 0.790
1600 0.840
2000 0.880
2500 0.940
3150 1.030
4000 1.100
5000 1.110
