1.1 本试验方法包括测定轧制油分散体在水中的分散稳定性。它适用于在适度搅拌下水分散体稳定，但静置一段时间后至少有一些分离的油 1. / 2. h、 通过油颗粒的上升。 1.2 以国际单位表示的值应视为标准值。本标准不包括其他计量单位。 1.3 本标准并不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建立适当的安全、健康和环境实践，并确定监管限制的适用性。 有关特定的警告语句，请参见 7.2 , A2.1 和 2.5个 . 1.4 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》中确立的国际公认标准化原则制定的。 =====意义和用途====== 5.1 每台轧钢机和操作都特别注意实现最大润滑和冷却效率所需的分散稳定性。本测试方法旨在区分此用途的冷却剂。铝轧机也遇到了类似的情况，但在这里使用的时间参数之外，需要指定沉降时间的显著差异。仅获得了与钢厂轧制油亚稳分散体相关的精度数据。

1.1 This test method covers determination of the dispersion stability of dispersions of rolling oils in water. It is applicable to oils whose water dispersions are stable under moderate agitation, but which show at least some separation upon standing quiescent for 1 / 2 h, by rising of the oil particles. 1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this 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. For specific warning statements, see 7.2 , A2.1 , and A2.5 . 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 ====== 5.1 Each steel rolling mill and operation is particular as to the degree of stability of dispersion required to effect maximum efficiency of lubrication and cooling. This test method is designed to differentiate between coolants for this use. A similar situation is encountered with aluminum rolling mills, but significant differences in designated settling times be required outside the parameter of times used herein. Precision data have only been obtained relative to metastable dispersions for steel mill rolling oils.