ČSN EN 15458

This document specifies a laboratory test method for determining the biocidal or biostatic efficacy of single active substances or combinations thereof used in film preservatives of coatings against algal growth. The document does not apply to coatings unsusceptible to algal growth. The test method covers only active substances for film preservation, not the substrate itself, e.g. wood, which is dealt with in another standard. The test method is applicable for active substances used for wood protection and masonry coatings. It is not applicable to marine coatings. Safety, health and environmental aspects are not in the scope of this document. Determination of the performance of film preservatives in coatings by applying ageing procedures is not within the scope of this document.