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type of evaluation method that is performed to determine the hardness of a material, typically coating materials, katse, mis viiakse läbi tavaliselt pindematerjali kõvaduse mõõtmisel erineva kõvadusega (8H kuni 4B) pliiatsiga kriimustamise teel
pliiatsikõvaduskatse . Materjalitehnika terminibaas. Estonian Language Institute, Sõnaveeb 2026. https://sonaveeb.ee/search/unif//mtr/pliiatsik%C3%B5vaduskatse/1/est (25.07.2026)