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>UNE EN ISO 22557:2021 - Paints and varnishes - Scratch test using a spring-loaded pen (ISO 22557:2019)
sklademVydáno: 2021-09-29
UNE EN ISO 22557:2021 - Paints and varnishes - Scratch test using a spring-loaded pen (ISO 22557:2019)

UNE EN ISO 22557:2021

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

Pinturas y barnices. Ensayo de rayado con un bolígrafo con resorte. (ISO 22557:2019).

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Označení normy:UNE EN ISO 22557:2021
Počet stran:23
Vydáno:2021-09-29
Status:Norma
Počet stran (Španělsky):25
Popis

UNE EN ISO 22557:2021

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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