http://www.testextextile.com/product/elmendorf-tear-tester-tf140c/
Elmendorf Tear tester,a computer controlled falling-pendulum instrument,to decide the ballistic tearing strength of textiles,plastics,paper or board.Tear Strength Tester complies with ASTM D1424/5734,ISO 1974/9290,BS ISO 13937,etc.
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