TAPPI T494 PDF

Tensile properties of paper and paperboard (using constant rate of elongation apparatus)

TAPPI T494 – Tensile properties of paper and paperboard (using constant rate of elongation apparatus)

This test method describes the procedure, using constant-rate-of-elongation equipment, for determining four tensile breaking properties of paper and paperboard: tensile strength, stretch, tensile energy absorption, and tensile stiffness.

This procedure is applicable to all types of paper and paperboard within the limitations of the instruments used, whether the instruments perform horizontal or vertical tests or whether they are manually operated or computer controlled. It is also applicable to handsheets, with modifications, as specified in TAPPI T 220 “Physical Testing of Pulp Handsheets.” It does not apply to combined corrugated board, towel and tissue. Towel and tissue papers are covered by TAPPI test method T576.