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>UNE standards>UNE 57043:2021 - Paper and board. Determination of machine and cross directions
in stockReleased: 2021-01-20
UNE 57043:2021 - Paper and board. Determination of machine and cross directions

UNE 57043:2021

Paper and board. Determination of machine and cross directions

Papel y cartón. Determinación de las direcciones máquina y transversal.

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Standard number:UNE 57043:2021
Pages:6
Released:2021-01-20
Status:Standard
DESCRIPTION

UNE 57043:2021

This test standard applies to all types of machine-made paper, except curled or creped papers or other special types produced by techniques that differ from normal paper machine practice. Sample sheets are assumed to have been cut with their sides parallel or at right angles to the machine direction. To determine machine and cross directions, a clear difference in fiber orientation and / or paper elasticity is required.