DS DS/EN ISO 20567-1
DS DSEN SO 20567-1 2006-NOV-09 Pants and varnshes - Determnaton of stone-chp resstance of coatngs - Part 1 Mult-mpact testng
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This part of EN ISO 20567 specfies three methods for the evaluation of the resistance of automobile finishes and other coatings to chilled-iron grit projected onto the surface under test to simulate the impact of small stones.