本试验方法为评估汽车冷却液软管盖的电阻提供了标准化程序。已知发动机和散热器之间存在电势。当车辆构造变化允许软管或软管卡箍与散热器和发动机上的金属部件接触从而完成电路时，冷却液软管盖的导电性已被确定为降低软管卡箍寿命的一个因素。随后的电流会削弱夹具保护涂层，使其容易受到道路盐、湿气和其他环境污染物的腐蚀影响。SAE推荐规程J1684涉及冷却液软管管部分的电化学电阻。

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.