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ISO 7554-3:2026 Surgical instruments — Terms, measuring methods and test methods — Part 3: Test methods

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ISO 22557:2019

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

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Description

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 √ó 50 mm).

The test can be carried out as a “pass/fail” test (test requirement I) or as a classification test (test requirement II).

Edition

1

Published Date

2019-07-16

Status

PUBLISHED

Pages

15

Language Detail Icon

English

Format Secure Icon

Secure PDF

Abstract

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 √ó 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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