ISO 4628-4:2016

Paints and varnishes — Evaluation of degradation of coatings — Designation of quantity and size of defects, and of intensity of uniform changes in appearance — Part 4: Assessment of degree of cracking

Publication date: 12 jan 2016

General information

Current stage: 90.20 Effective date: 15 pri 2026

Originator: ISO

Owner: ISO/TC 35/SC 9

Type: International Standard

ICS: 87.040

Gjuha: anglisht frëngjisht

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Statusi: Publikuar

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Scope

ISO 4628-4:2016 specifies a method for assessing the degree of cracking of coatings by comparison with pictorial standards.
ISO 4628‑1 defines 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.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 4628-4:2003

NOW

PUBLISHED
ISO 4628-4:2016
90.20 Standard under periodical review
15 pri 2026

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