SAE J902-1999
Passenger Car Windshield Defrosting Systems

Standard No.
SAE J902-1999
Release Date
1999
Published By
Society of Automotive Engineers (SAE)
Status
 2011-08
Replace By
SAE J902-2003
Latest
SAE J902-2019
Scope
This SAE Recommended Practice provides a test procedure and performance guideline for evaluating passenger car windshield defrosting systems. It is limited to results of tests that can be conducted on uniform test equipment in commercially available laboratory facilities. The current engineering practice prescribes that for laboratory evaluation of defroster systems, a known quantity of water shall be sprayed on the windshield to form an ice coating and then melted by the defroster under specific vehicle operating conditions. The procedure provides uniform and repeatable laboratory test results, even though under actual conditions such a coating would be removed by scraping before driving the vehicle. The performance obtained, therefore, does not directly relate to actual driving conditions, but serves as a laboratory performance indicator for comparing test results within or between systems.

SAE J902-1999 history




Copyright ©2024 All Rights Reserved