ISO 2493-2:2020 PDF

Scope: This document specifies procedures to measure the bending resistance of paper and paperboard using a Taber-type tester. This document is used to determine the bending moment required to deflect the free end of a 38 mm wide vertically clamped specimen by 15° when the load is applied at a bending length of 50 mm. For boards that tend to be permanently deformed if bent through 15°, the half bending angle, i.e. 7,5°, can be used. The bending resistance is expressed in terms of the bending moment and parameters set by the manufacturer of the Taber-type tester. The method is primarily used for papers with a high grammage. NOTE This document does not cover the low-range version of the Taber-type instrument that uses a bending length of 10 mm (see Reference [5]).

ISO 2493-2:2020 Referenced Document

ISO 186 Paper and board - Sampling to determine average quality
ISO 187 Paper, board and pulps; standard atmosphere for conditioning and testing and procedure for monitoring the atmosphere and conditioning of samples*， 2022-01-01 Update

2020 ISO 2493-2:2020 Paper and board — Determination of resistance to bending — Part 2: Taber-type tester
2011 ISO 2493-2:2011 Paper and board - Determination of bending resistance - Part 2: Taber-type tester