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INTRODUCTION
The Tearing Strength
of Fabrics, Plastic Films or other
similar material is determined by
measurement of the work done in tearing
through a fixed length of the test
specimen using the K.V.S. Tearing Strength
Tester.
EQUIPMENT
The K.V.S. Tearing Strength Tester
consists of a Sector Pendulum Pivoted
on anti-friction ball bearings on
a vertical bracket fixed on a rigid
metallic base. The test specimen in
shape of a rectangular piece is held
between two clamps, one of which is
mounted on the pendulum and the other
is mounted on the fixed bracket. The
clamps are mounted in such a manner
that their holding faces are aligned
with each other when the pendulum
is locked in its raised position.
The
adjustable knife is also mounted on
the bracket, on which the pendulum
and the fixed clamp is mounted, it
is centered between the two clamps
for making initial slit in the test
specimen. The pendulum is released
by lifting a release lever. This action
causes the test specimen to tear right
through. The Tearing Strength is indicated
on a scale fitted on the pendulum
against a low friction pointer pivoted
on the axis of the pendulum.
A
set of CHECK WEIGHTS is supplied with
the tester for verification of the
Scale.
In
order to increase the capacity of
the Tester, augmenting weights are
supplied as ‘STANDARD ACCESSORIES’.
For testing of low strength materials,
multiple specimens may be mounted
at the same time.
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