ISO 5636-5:2013规定了使用空气阻力测试仪（Gurley仪器）测定纸张和纸板透气性的Gurley方法。 它适用于使用Gurley仪器进行测试时，空气渗透率在0.1μm/（Pa？s）和100μm/（Pa？s）之间的纸张和纸板。 不适用于表面粗糙的材料，这些材料无法牢固夹紧以避免泄漏。 ISO 5636-5:2013也可用于测定纸和纸板的空气阻力。

ISO 5636-5:2013 specifies the Gurley method for determining the air permeance of paper and board using an air resistance tester, the Gurley apparatus. It is applicable to papers and boards which have air permeances between 0,1 μm/(Pa？s) and 100 μm/(Pa？s) when tested with the Gurley apparatus. It is unsuitable for rough-surfaced materials, which cannot be securely clamped to avoid leakage. ISO 5636-5:2013 may also be used to determine the air resistance of paper and board.