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.
PUBLISHED
ISO 21227-4:2008
IN_DEVELOPMENT
ISO/DIS 21227-4
40.99
Full report circulated: DIS approved for registration as FDIS
28 maj 2026