Looking for data-driven BSDF datasets of roller shades

Dear Radiance experts,

I wonder whether you could share a data-driven BSDF dataset of a low-openness roller shade (OF <= 3%). I am trying to estimate the relative errors of isotropic model (of shades) for calculating annual visual discomfort frequency compared to an anisotropic BSDF dataset.

Any help would be greatly appreciated!

Many thanks,