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GMW3049

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GMW3049 4th Edition, November 1, 2014 Defroster System Maximum Performance Validation for Passenger Vehicles

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Description / Abstract: Introduction

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. Validation of the performance capability of a vehicle windshield and side window defrosting system using reproducible measurements in a climatic wind tunnel.

Applicability. For all passenger vehicle defroster systems.

Remarks. Relative humidity of the climatic wind tunnel is a significant factor in determining the defrosting performance of the vehicle per this procedure. It is imperative that the recommendation for relative humidity outlined in this procedure be followed for consistent deicing performance.