Describe this standard! method for determining the tensile strength and elongation at break of paper and cardboard with a regularly increasing load. The calculation of the tensile strength index and the breaking length is also indicated. This standard applies to all paper and cardboard types with the exception of corrugated cardboard, but does apply to the individual layers of this cardboard. Note For the determination of the tensile strength properties according to the method with uniform tensile speed, see NEN 2013.
NEN 1249-1988 history
1988NEN 1249-1988 Paper and board - Determination of tensile properties - Constant rate of tensile force