ISO 22557:2019

Paints and varnishes — Scratch test using a spring-loaded pen ISO 22557:2019

Publication date:   Jul 16, 2019

General information

60.60 Standard published   Jul 16, 2019

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 a method for determining the resistance of a coating to scratches introduced by a usually hand-held loaded stylus.
The test can be carried out using a point stylus (method A) or using a disc stylus (method B).
Both methods are generally applicable and can be used in the field as well as on curved surfaces. Method A can also be applied on small test specimens (minimum dimensions 30 mm × 50 mm).
The test can be carried out as a "pass/fail" test (test requirement I) or as a classification test (test requirement II).

Life cycle

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PUBLISHED
ISO 22557:2019
60.60 Standard published
Jul 16, 2019