标准摘要
[中文适用范围]： 本文件规定了使用谢菲尔德仪器测定纸和纸板粗糙度的方法。 本文件适用于谢菲尔德粗糙度值在 10 毫升/分钟至约 3000 毫升/分钟之间的纸张和纸板。 它不适用于允许测试头的平台压入表面的软纸，或允许大量空气流过纸张的高透气性纸，或在测试过程中不会平放的纸张。 [外文原描述]： ISO 8791-3:2017 specifies a method for the determination of the roughness of paper and board using the Sheffield apparatus. ISO 8791-3:2017 is applicable to papers and boards which have Sheffield roughness values between 10 ml/min and about 3 000 ml/min. It is not suitable for soft papers which allow the lands of the test head to indent the surface, or for high air-permeance papers which allow a significant flow of air through the sheet, or for papers which will not lie flat during the test.
英文名称Paper and board — Determination of roughness/smoothness (air leak methods) — Part 3: Sheffield method