1.1本规程涵盖了根据规程E 45的显微镜方法A和D，使用自动图像分析进行JK型夹杂物评级的程序。 1.2本规程仅涉及推荐的试验方法，其中的任何内容均不应解释为定义或确定任何等级的钢或其他合金的可接受极限，只要该方法适用。 1.3以国际单位制表示的数值应视为标准。括号中的值是换算值，是近似值。 1.4 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。

1.1 This practice covers procedures to perform JK-type inclusion ratings using automatic image analysis in accordance with microscopical methods A and D of Practice E 45. 1.2 This practice deals only with the recommended test methods and nothing in it should be construed as defining or establishing limits of acceptability for any grade of steel or other alloy where the method is appropriate. 1.3 The values stated in SI units are to be regarded as the standard. Values in parentheses are conversions and are approximate. 1.4 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.