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1.1 This test method covers the determination of the resistance of plastics to surface marring caused by falling abrasive particles. Materials such as films, molded, or laminated plastics may be evaluated.
1.2 A surface to be tested should be relatively flat and smooth; the damage done by a falling object is a function of the angle at which it strikes. Since deterioration is usually measured optically, the material evaluated is normally of high initial gloss or low initial haze.
1.3 In other than flat form, materials may be compared visually. Care must be exercised to use the same shape of specimen throughout and to have the abrasive fall on the same area at the same angle.
1.4 The values stated in SI units are to be regarded as the standard.
1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.Note 1-There is no similar or equivalent ISO standard.