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ISO 4628-3:2024

Paints and varnishes — Evaluation of quantity and size of defects, and of intensity of uniform changes in appearance — Part 3: Assessment of degree of rusting ISO 4628-3:2024

Publication date:   Nov 13, 2024

General information

60.60 Standard published   Nov 13, 2024

ISO

ISO/TC 35/SC 9 General test methods for paints and varnishes

International Standard

87.040   Paints and varnishes

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Scope

This document specifies methods for assessing the degree of rusting of surfaces coated with paints and varnishes (organic coatings), and metallic coating plus an organic coating (duplex system), by comparison with pictorial standards.
The pictorial standards provided in this document show surfaces which have deteriorated to different degrees by a combination of rust broken through the coating and visible under-rusting.
The assessment of the degree of rusting in this document is only an estimation of the affected area on specimen. Edges are not included.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 4628-3:2016

NOW

PUBLISHED
ISO 4628-3:2024
60.60 Standard published
Nov 13, 2024