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prEN ISO 22557

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

General information
Draft
Base Documents
ISO 22557:2019; prEN ISO 22557
Directives or regulations
None

Standard history

Status
Date
Type
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Main
prEN ISO 22557
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).
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