1.1 本试验方法确定了冷却系统化学溶液对机动车辆上使用的有机涂层的影响。冷却系统化学品包括:冷却剂或缓蚀剂，或两者兼有，冷却系统清洁剂或冲洗剂，或两者兼有，以及止漏添加剂。 注1: 本试验方法是对试验方法的修改 D1540 . 1.2 以国际单位制表示的数值应视为标准值。国际单位制后括号中给出的值仅供参考，不被视为标准值。 1.3 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的用户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。 1.4 本国际标准是根据世界贸易组织技术性贸易壁垒（TBT）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》中确立的国际公认标准化原则制定的。 ====意义和用途====== 4.1 本试验方法将区分当应用于车辆上使用的有机饰面时，冷却系统化学溶液是否有改变表面外观的趋势。这种变化可能表现为变色、失去光泽、软化、膨胀或其他类似现象。

1.1 This test method determines the effect of cooling system chemical solutions on organic finishes used on motor vehicles. Cooling system chemicals include: coolants or corrosion inhibitors, or both, cooling system cleaners or flushes, or both, and stop leak additives. Note 1: This test method is a modification of Method of Test D1540 . 1.2 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. 1.3 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. 1.4 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 ====== 4.1 This test method will distinguish between cooling system chemical solutions that do or do not have a tendency to change the surface appearance when applied to organic finishes used on vehicles. Such changes may be manifested by discoloration, loss of gloss, softening, swelling, or other similar phenomena.