Paints and varnishes — Determination of hiding power — Part 3: Determination of hiding power of paints for masonry, concrete and interior use

This document specifies methods for determining the hiding power given by paint coats of white or light colours of tristimulus values Y and Y₁₀ greater than 25, applied to a black and white chart, or to a colourless transparent foil. In the latter case the tristimulus values Y and Y₁₀ are measured over black and white panels. Subsequently, the hiding power is calculated from these tristimulus values.

This document also specifies a simple method for calculating the spreading rate for paints with a volatile matter content with low evaporation speed, e.g. coatings for interior walls and ceilings as specified in EN 13300.