Tag Archives: zero-span

Zero-span: an attractive alternative, but where to measure…

by Natalie Brown Recently I performed Zero-span measurements on a selection of 19th and 20th Century Chinese papers. A Zwick Roell tensile strength machine, equipped with a modified z span application, was used on a sample set that was a mixture of traditional handmade paper (image A) and mass-produced machine made papers (image B). Before […]