GMNA GM8103G White Corrosion Rating Scale

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GMNA GM8103G Document Information:

Title
White Corrosion Rating Scale

General Motors North America

Publication Date:
Dec 1, 2004

Scope:

The Corrosion Rating Scales Guidelines contain corrosion rating scales, rating guidelines, and photographs for the determination of corrosion severity on all vehicular parts, including body and sheet metal, under-vehicle and underhood components, and fasteners. It is intended that the scales are used for both corporate corrosion inspections and field surveys.

The purpose of the rating scale is to allow comparison between vehicles and consistency between personnel. It is between personnel. It is important to recognize that ratings corrosion involves perception of an objectionable surface and much of the judgment is subjective. In developing the corrosion scales, we have tried to provide some objective measure that will guide subjective judgment.

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