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Full Description

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.
 

Document History

  1. SAE J1684_201811

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    Test Method for Evaluating the Electrochemical Resistance of Coolant System Hoses and Materials

    • Most Recent
  2. SAE J1684_200509


    Test Method for Evaluating the Electrochemical Resistance of Coolant System Hoses and Materials

    • Historical Version
  3. SAE J1684_200509


    Test Method for Evaluating the Electrochemical Resistance of Coolant System Hoses and Materials

    • Historical Version