90.93 Standard confirmed Nov 17, 2021
ISO
ISO/TC 107/SC 8 Chemical conversion coatings
International Standard
25.220.20 Surface treatment
Specifies requirements relating to coatings intended to give protection against corrosion. Finishes for giving particular colours only or specifically to improve paint adhesion are not covered by this International Standard. Gives furhermore the method of application of chromate conversion coatings and a classification.
PUBLISHED
ISO 4520:1981
90.93
Standard confirmed
Nov 17, 2021