1.1本试验方法包括测定轧制油在水中的分散稳定性。它适用于水分散在适度搅拌下稳定，但在静置一段时间后至少显示出一些分离的油 ½ h、 通过油颗粒的上升。 1.2以国际单位制表示的数值应视为标准值。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和健康实践，并确定监管限制的适用性。 有关具体的警告声明，请参阅6.2、A2.1和A2.5。 ====意义和用途====== 每台轧钢机和操作在影响最大润滑和冷却效率所需的分散稳定性方面都是特殊的。本试验方法旨在区分该用途的冷却液。铝轧机也遇到类似情况，但在本文使用的时间参数之外，需要在指定的沉降时间上存在显著差异。仅获得了有关轧钢机油亚稳分散体的精度数据。

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 ½ 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 and health practices and determine the applicability of regulatory limitations prior to use. For specific warning statements, see 6.2, A2.1, and A2.5. ====== Significance And Use ====== 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.