SAE J 2790:2021

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Test Method for Evaluating the Electrical Resistance of Coolant System Hose Covers

Published By	Publication Date	Number of Pages
SAE	2021-08-12	7

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Categories: 83.140.40 - Hoses, SAE

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Description

This test method provides a standardized procedure for evaluating the electrical resistance of automotive coolant hose covers. It is known that an electrical potential exists between the engine and the radiator. Coolant hose cover conductivity has been determined to be a factor to reduce hose clamp life when vehicle build variations allow possible contact of the hose or the clamp to metal components on the radiator and engine thus completing an electrical circuit. The ensuing electrical current can undercut the clamp protective coating, leaving it vulnerable to the corrosive effects of road salts, moisture, and other environmental contaminants. SAE Recommended Practice J1684 addresses the electrochemical resistance of the tube portion of the coolant hose.

Additional information

Published Code	SAE
Published By	SAE International, formerly Society of Automotive Engineers
Publication Date	2021-08-12
Pages Count	7
Language	English
Descriptors	Hoses; Test procedures; Radiators; Coolants; Test equipment and instrumentation; Manufacturing systems; Conductivity; Coatings, colorants, and finishes; Statistical analysis; Identification numbers
File Size	194.6 KB
ICS Codes	83.140.40 - Hoses

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SAE J 2790:2021

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