本文件规定了测定透气性（AP）的方法。 它适用于用作卷烟纸、过滤器塞包装和过滤器连接纸的材料，包括具有定向可渗透区或离散可渗透区的材料，其中测量的渗透率在1kPa下超过10cm3·(min1·cm2)。此外，本发明适用于带状卷烟纸，带状卷烟纸的宽度至少为4mm。 注本文件范围之外的材料的透气性估算见5.1.2和7.6.1.4中的注3。

This document specifies a method for the determination of air permeability (AP). It is applicable to materials used as cigarette papers, filter plug wrap and filter joining paper, including materials having an oriented permeable zone or discrete permeable zones where the measured permeability is in excess of 10 cm³·(min ¹·cm ²) at 1 kPa. In addition, it is applicable to banded cigarette papers, with bands of a width of at least 4 mm. NOTE For an estimate of the air permeability of materials outside the scope of this document, see Note 3 in 5.1.2 and 7.6.1.4.