ISO 5636-4:2005 纸和纸板 透气性（中等范围）的测定 第4部分：谢菲尔德（SHEFFIELOT）法

标准编号：ISO 5636-4:2005

中文名称：纸和纸板 透气性（中等范围）的测定 第4部分：谢菲尔德（SHEFFIELOT）法

英文名称：Paper and board — Determination of air permeance (medium range) — Part 4: Sheffield method

发布日期：2005-02

标准范围

ISO 5636-4:2005规定了在单位压差下，使用谢菲尔德仪器测定纸张或纸板单位面积内空气流速的方法。该方法适用于空气渗透率在0.02微米/帕斯卡秒到25微米/帕斯卡秒之间的纸张和纸板。该方法不适用于表面粗糙的纸张和纸板，如crêpe纸和瓦楞纸，因为它们无法牢固夹紧以避免表面泄漏。

ISO 5636-4:2005 specifies a method of determining the air flow rate through unit area of a sheet of paper or board, under unit pressure difference using apparatus called the Sheffield instrument.The method is applicable to papers and boards having air permeances between 0,02 micrometres per pascal second and 25 micrometres per pascal second. The method is not suitable for papers and boards with a rough surface, such as crêpe paper and corrugated papers, which cannot be securely clamped to avoid surface leakage.

标准预览图