ISO 13947:2011规定了使用粉末锻造试样测定金属粉末中非金属夹杂物含量的金相方法。本试验方法适用于最小横向流动（<；1%）的压制粉末锻造试样。粉末锻造试样的核心区域不包含在100'放大倍数下可检测到的孔隙。 本试验方法也可用于测定粉末锻钢零件的非金属夹杂物含量。然而，在存在大量物流的部分，近- 相邻分离距离需要改变，或者双方商定的夹杂物尺寸需要调整。 本试验方法不适用于确定锻造零件的非金属夹杂物水平，因为锻造零件的核心区域含有孔隙。在本试验方法中使用的放大倍数下，残余孔隙度很难与夹杂物区分开来。过多的残余孔隙度使得无法对包裹体总体进行有意义的评估。 本试验方法可适用于含有硫酸锰（混合或预合金）的材料，前提是- 相邻分离距离从30μm变为15μm。

ISO 13947:2011 specifies a metallographic method for determining the non-metallic inclusion level in metal powders using a powder-forged specimen. The test method covers repress powder-forged test specimens in which there has been minimal lateral flow (< 1 %). The core region of the powder-forged test specimen contains no porosity detectable at 100 ′ magnification. This test method can also be used to determine the non-metallic inclusion content of powder-forged steel parts. However, in parts where there has been a significant amount of material flow, the near-neighbour separation distance needs to be changed, or the inclusion sizes agreed between the parties need to be adjusted. This test method is not suitable for determining the non-metallic inclusion level of parts that have been forged such that the core region contains porosity. At the magnification used for this test method, residual porosity is hard to distinguish from inclusions. Too much residual porosity makes a meaningful assessment of the inclusion population impossible. This test method can be applied to materials that contain manganese suifide (admixed or prealloyed), provided the near-neighbour separation distance is changed from 30 μm to 15 μm.