1.1本标准描述了三种相关试验方法，涵盖了油浸粉末冶金产品物理性能的测量。 1.1.1测定材料中所含油的体积百分比。 1.1.2油浸渍过程效率的测定。 1.1.3通过油浸测定互连孔隙度百分比。 1.2以国际单位制表示的数值应视为标准。括号中的值根据IEEE/ASTM SI 10进行转换，仅供参考。 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。 ====意义和用途====== 含油量值通常包含在油浸粉末冶金轴承的规范中。 油浸效率可指示接收零件的浸渍情况。 粉末冶金轴承所需的自润滑性能要求互连孔隙率最小，并且互连孔隙率具有令人满意的浸油性能。规定了最低含油量。 这些试验方法的结果可用于质量控制或合规性目的。

1.1 This standard describes three related test methods that cover the measurement of physical properties of oil-impregnated powder metallurgy products. 1.1.1 Determination of the volume percent of oil contained in the material. 1.1.2 Determination of the efficiency of the oil-impregnation process. 1.1.3 Determination of the percent interconnected porosity by oil impregnation. 1.2 The values stated in SI units are to be regarded as the standard. The values in parentheses are converted in accordance with IEEE/ASTM SI 10 and are for information only. 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. ====== Significance And Use ====== Oil content values are generally contained in specifications for oil-impregnated PM bearings. The oil-impregnation efficiency provides an indication of how well the as-received parts had been impregnated. The desired self-lubricating performance of PM bearings requires a minimum amount of interconnected porosity and satisfactory oil impregnation of the interconnected porosity. A minimum oil content is specified. The results from these test methods may be used for quality control or compliance purposes.