取消并替换第一版（1984年）。指定一种测量纸张和纸板平滑度的方法，称为Bekk方法。特别推荐用于光滑的纸张和纸板。然而，对于非常光滑的样品，测量时间可能很长。不建议用于厚度大于0.5mm或渗透性很强的纸张和纸板，因为通过试样的空气量可能会影响结果。不建议用于新闻纸，也不适用于粗糙的纸张和纸板。

Cancels and replaces the first edition (1984). Specifies a method of measuring the smoothness of paper and board, called the Bekk method. Especially recommended for smooth paper and boards. However for very smooth samples, measurement times may be impractically long. Not recommended for materials greater than 0,5 mm thick or very permeable papers and board, since the amount of air passing through the test piece can influence the result. Not recommended for newsprint and not suitable for rough papers and boards.