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 21227-4:2008Published
Paints and varnishes — Evaluation of defects on coated surfaces using optical imaging — Part 4: Evaluation of filiform corrosion
Peintures et vernis — Évaluation par imagerie optique des défauts des surfaces revêtues — Partie 4: Évaluation de la corrosion filiforme
A new edition is under development: ISO/FDIS 21227-4.