Abstract / scope
ISO 21227-4:2008 describes a method for evaluating filiform corrosion by means of digital optical imaging. Only the evalution procedure is described. The filiform corrosion itself is produced in accordance with other standards.
ISO/FDIS 21227-4Under development
Paints and varnishes — Evaluation of defects on coated surfaces using digital image processing — Part 4: Evaluation of filiform corrosion on coated corrosion test samples
Peintures et vernis — Évaluation des défauts sur des surfaces revêtues par traitement numérique d'images — Partie 4: Évaluation de la corrosion filiforme sur des échantillons d'essai de corrosion revêtus