ISO 5350-2:20 06规定了一种通过透射光估计片状纸浆中可见污垢和碎屑的方法。根据ISO 5350-2:20 06，它不适用于未漂白的牛皮纸浆或任何其他太不透明而无法估计最小尺寸或计数最小对比度斑点的片状纸浆。大多数纸浆片材的最大克重在800g/m2至1000g/m2的范围内。 如果磨片纸浆的片材具有高克重或由于其他原因非常不透明，则应应用ISO 5350-1:20 06。 ISO 5350-2:20 06不适用于再生纸浆。

ISO 5350-2:2006 specifies a method for the estimation by transmitted light of the visible dirt and shives in pulp manufactured in sheets. It does not apply to unbleached kraft pulps or to any other sheeted pulps that are too opaque to allow for the estimation of the minimum size or for minimum contrast specks to be counted, in accordance with ISO 5350-2:2006. The maximum grammage for most pulp sheets is in the range 800 g/m² to 1 000 g/m². If the sheets of the mill sheeted pulp have high grammage or are very opaque for other reasons, ISO 5350-1:2006 should be applied. ISO 5350-2:2006 is not intended for recycled pulp.