本试验方法为评估汽车冷却液软管和材料的电化学电阻提供了标准化程序。电化学降解已被确定为EPDM冷却系统软管故障的主要原因。试验方法包括一个程序，当试样暴露在水/冷却剂溶液中时，该程序向试样施加电压。方法#1，称为“Brabolyzer”测试，是一个完整的软管测试。方法2，称为“U”型管试验，使用固化板样品或从软管中取出的管材料制备的板（方法2仅用作筛选试验）。除本SAE推荐规程中规定的测试参数外，测试人员和请求者应同意任何测试参数。

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.