This document specifies a natural weathering test for exterior wood coating systems mainly intended for decoration and protection of planed and sawn wood.

The test provides a means of evaluating the performance of a wood coating system during outdoor exposure. It forms the basis for the performance specification according to EN 927-2. It also facilitates the comparison of coating systems performance on different substrates including the wood species, or other wood modifications.

For further information, see Annex E.