EN
ZHTest Method: SATRA TM30
Tear strength - trouser leg method
April 2017
SCOPE
This method is intended to determine the force required to tear a material. The method is mainly applicable to non-leather footwear upper and lining materials, but can be used with all types of thin flexible material.
PRINCIPLE
A test specimen, which has a single slit to produce two legs, is loaded into a tensile testing machine so that the slit is parallel to the axis of the machine and one leg is clamped in each jaw, see figure 1. The jaws are moved apart to tear the material until the tear has propagated to an edge of the test specimen. The average force required to propagate the tear, the type of tear and the thickness of the test specimen are recorded.
REFERENCES
EN ISO 7500-1 – Metallic materials. Calibration and verification of static uniaxial testing machines. Tension/compression testing machines. Calibration and verification of force-measuring system.
HISTORY
First issued January 1968. Revised August 1980, August 1988, September 1995, April 2017.
AVAILABILITY
This test method is available to members and non-members.
PRICE (ex. VAT)
This price is for a printed copy of the Test Method.
- Members: £75
- Non-members: £215