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sklademVydáno: 2019-07-19
BS ISO 22557:2019
Paints and varnishes. Scratch test using a spring-loaded pen
Měna
| Označení normy: | BS ISO 22557:2019 |
| Počet stran: | 22 |
| Vydáno: | 2019-07-19 |
| ISBN: | 978 0 539 00129 7 |
| Status: | Standard |
Popis
BS ISO 22557:2019
This standard BS ISO 22557:2019 Paints and varnishes. Scratch test using a spring-loaded pen is classified in these ICS categories:
- 87.040 Paints and varnishes
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).
