ISO 3689:2024-ed.3.0

Anotace textu normy ISO 3689:2024-ed.3.0 :

Description / Abstract: This document specifies a method for the determination of the wet strength of paper and board by measuring its bursting strength after it has been immersed in water for a specified period. The method is applicable to most kinds of paper and board, provided that an appropriate immersion time is agreed between the interested parties. Different results can be found if the sample is re-tested after a period of time.