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ISO - DIS 4628-3

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

pending
Organization: ISO
Publication Date: 28 August 2023
Status: pending
Page Count: 28
ICS Code (Paints and varnishes): 87.040
scope:

This document specifies a method for assessing the degree of rusting of surfaces coated

- with paints and varnishes (organic coatings),

- with metallic coating plus an organic coating (duplex coating) and

- with metallic coatings only (e.g. hot-dip galvanized steel)

by comparison with pictorial standards.

The standard can also be used for bare metal surfaces.

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 assessing of the degree of rusting of this document is only an estimation of the affected area on specimen. Edges are not included.

NOTE 1 The pictorial standards have been selected from the "European rust scale" published by the European Confederation of Paint, Printing Ink and Artists' Colours Manufacturers' Associations (CEPE), Brussels. The correlation between the ISO scale and the "European rust scale" is given in Annex C, Table C.1.

NOTE 2 The correlation between the ISO scale and the rating system of ASTM D610-08 is given in Annex C, Table C.2.

ISO 4628-1 describes the system used for designating the quantity and size of defects and the intensity of changes in appearance of coatings and outlines the general principles of the system. This system is intended to be used, in particular, for defects caused by ageing and weathering, and for uniform changes such as colour changes, for example yellowing.

Document History

DIS 4628-3
August 28, 2023
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
This document specifies a method for assessing the degree of rusting of surfaces coated — with paints and varnishes (organic coatings), — with metallic coating plus an organic coating (duplex...
January 15, 2016
Paints and varnishes - Evaluation of degradation of coatings - Designation of quantity and size of defects, and of intensity of uniform changes in appearance - Part 3: Assessment of degree of rusting
This part of ISO 4628 specifies a method for assessing the degree of rusting of coatings by comparison with pictorial standards. The pictorial standards provided in this part of ISO 4628 show coated...
September 1, 2003
Paints and Varnishes - Evaluation of Degradation of Paint Coatings - Designation of Intensity, Quantity and Size of Common Types of Defect - Part 3: Designation of Degree of Rusting First Edition
This part of ISO 4628 describes a method for assessing the degree of rusting of coatings by comparison with pictorial standards. The pictorial standards provided in this part of ISO 4628 show coated...
January 1, 1982
Paints and Varnishes - Evaluation of Degradation of Paint Coatings - Designation of Intensity, Quantity and Size of Common Types of Defect - Part 3: Designation of Degree of Rusting First Edition
A description is not available for this item.

References

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