Note: Nothing in this standard supercedes applicable laws and regulations.

Note: In the event of conflict between the English and domestic language, the English language shall take precedence.

Purpose. Determination of the scratch resistance of plastics (Method A) and the determination of the mar resistance on plastics (Method B). For this purpose the surface is scratched.

Note: Method A is the standard method. Method A may be used for molded parts and for sample plates. Method B is a development method. Method B may only be used for sample plates with correct color and grain.

Method A is based on ISO 7724.

Method B is based on ISO 2813.

Foreword. Not applicable.

Applicability. Uncoated interior and exterior plastic parts.