This test method provides a standardized procedure for evaluating the electrochemical resistance of automotive coolant hose and materials. Electrochemical degradation has been determined to be a major cause of EPDM coolant system hose failures. The test method consists of a procedure which induces voltage to a test specimen while it is exposed to a water/coolant solution. Method #1, referred to as a “Brabolyzer” test, is a whole hose test. Method #2, referred to as a “U” tube test, uses cured plate samples or plates prepared from tube material removed from hose (Method No. 2 is intended as a screening test only). Any test parameters other than those specified in this SAE Recommended Practice, are to be agreed to by the tester and the requester.
Rationale
This document has been reaffirmed to comply with the SAE 5-Year Review policy.
The Non-Hydraulic Hose Committee develops and maintains SAE Standards, Recommended Practices, Information Reports and appropriate manuals relating to the development of non-hydraulic thermoset and thermoplastic elastomeric hose specifications, such as those used in cooling, fuel, oil, fuel vapor, air management, windshield washer (tubing) and refrigerant systems, which can be either mobile or stationary applications. The task forces formed under the committee's direction include: Low Permeation J2416 Diesel Fuel Hose Fuel Cell/Hybrid Vehicle Hoses Test Method for Non-Conductive Coolant Hose Cover Participants in the SAE Non-Hydraulic Hose Committee include OEMs, suppliers, consulting firms, government and other interested parties.
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Test Method for Evaluating the Electrochemical Resistance of Coolant System Hoses and Materials
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Test Method for Evaluating the Electrochemical Resistance of Coolant System Hoses and Materials
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