BSDF reader

Hi all,

i would like to write a BSDF/xml parser for Rhino/Grasshopper 3d modelling
software.

In order to correctly interpret the data contained in <ScatteringData>
element in the xml file, i would appreciate to know:

-The order of this data related to Klem´s patches. supposed that they are
measuremts for each input/output direction

- The units of this data. Lumens? Percentage?

thanks
aitor