标准摘要
[中文适用范围]： ISO 5636 的这一部分规定了使用谢菲尔德仪器测定纸和纸板透气度的谢菲尔德方法。 它适用于用谢菲尔德仪器测试时透气度在0.02μm/(Pa·s)和25μm/(Pa·s)之间的纸和纸板。 不适合表面粗糙的材料，不能牢固夹紧以避免泄漏。 [外文原描述]： ISO 5636-4:2013 specifies the Sheffield method for determining the air permeance of paper and board using the Sheffield apparatus. It is applicable to papers and boards which have air permeances between 0,02 µm/(Pa·s) and 25 µm/(Pa·s) when tested with the Sheffield apparatus. It is unsuitable for rough-surfaced materials, which cannot be securely clamped to avoid leakage.
英文名称Paper and board — Determination of air permeance (medium range) — Part 4: Sheffield method