Elmendorf tearing tester

Tear strength is defined as a value of resistance to tearing when a

sheet of paper is held with both hands and torn. To simulate this

force, the fan-shaped pendulum is swung down onto the paper

from a certain level of height to tear it, and the energy loss of the

pendulum at that time is given as tear strength. According to the

strength of a paper sheet, change the number of paper sheets

from one to sixteen, and the value obtained is converted to the

value at the time 16 sheets of the same paper are subject to tearing.

This value is used as a tear value.

Specifications:

Specimen size: 63 mm long, 50 to 75 mm wide

Measuring range: 100 to 16,000mN

Test tear length: 43 mm

Test slit length: 20 mm

Referential standards: TAPPI T414om-98, ISO 1974