I am designing a rain device, and I am interested in a set of common metrics / standards for determining how something gets "wet".
(1) Is there a "water absorbance" metric for materials (ie will the water be deflected or actually penetrate the surface)
(2) Ability for the material to dry (I know this is measured in time, but is there a standard for the drying conditions)
If you know of any other standards that may be of interest please let me know.