Значење и сврха
5.1 In some cases, coating damage applied to the substrate under typical conditions of use is unacceptable. It has been found that the test method can be used to distinguish the damage degree of coating on the substrate. It is useful to provide relative ratings for a range of coated plates that exhibit significant differences in damage.

5.2 In limited laboratory studies, it is not possible to obtain meaningful damage results when testing powder coatings. Scratches, or scratches, become increasingly imperceptible over time. Стога, powder coatings may not be suitable for this test method.

Обим
1.1 This test method covers the determination of abrasion resistance on smooth, flat surfaces. The results are expressed in terms of tear force films when organic coatings, such as paint, varnish, and lacquer, are applied to smooth, flat panel surfaces.

ASTM D5178-2021 Abrasion Resistance of Organic Coatings

1.2 Units-Values expressed in inch-pound units are considered standard. Вредности дате у заградама су математичке трансформације СИ јединица и служе само за референцу и не сматрају се стандардним.

1.3 Овај стандард није намењен решавању свих безбедносних питања, ако их има, повезана са његовом употребом. Одговорност корисника овог стандарда је да успоставе одговарајућу безбедност, здравствене и еколошке праксе и да се утврди применљивост регулаторних ограничења пре употребе.

1.4 This international Standard has been developed in accordance with the internationally accepted standardization principles established in the decisions of the Committee on Technical Barriers to Trade (ТБТ) of the World Trade Organization on the Formulation of International standards, guidelines and recommended principles.