1.1 该试验方法包括一种简单的烧杯型程序，用于在受控的实验室条件下评估乙二醇基电动车辆冷却剂对金属样品的影响。 1.2 该试验方法评估不锈钢和铝试样的腐蚀性，可选择铜试样。 1.3 本试验方法评估不添加任何腐蚀性元素的冷却剂。 1.4 可以评估其他类型的金属试样。 1.5 以国际单位制表示的数值应视为标准。SI单位后括号中给出的值仅供参考，不视为标准值。 1.6 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的使用者有责任在使用前制定适当的安全、健康和环境实践，并确定监管限制的适用性。 1.7 本国际标准是根据世界贸易组织技术性贸易壁垒委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认的标准化原则制定的。 ===意义和用途====== 5.1 该试验方法提供了一种从腐蚀角度区分有害冷却剂和适合进一步评估的冷却剂的方法。 图1 336的金属样品和设备 h腐蚀试验 图2 336小时腐蚀试验用高形烧杯试样和设备

1.1 This test method covers a simple beaker-type procedure for evaluating the effects of glycol-based electric vehicle coolants on metal specimens under controlled laboratory conditions. 1.2 This test method evaluates the corrosion on test specimens of stainless steel and aluminum, with an option for a copper test specimen. 1.3 This test method evaluates coolants without the addition of any corrosive elements. 1.4 Additional types of metal test specimens may be evaluated. 1.5 The values stated in SI units are to be regarded as standard. The values given in parentheses after SI units are provided for information only and are not considered standard. 1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.7 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. ====== Significance And Use ====== 5.1 This test method provides a method to distinguish between coolants that are deleterious from the corrosion standpoint and those suitable for further evaluation. FIG. 1 Metal Specimens and Equipment for the 336 h Corrosion Test FIG. 2 Tall Form Beaker Specimens and Equipment for the 336 h Corrosion Test