Translate this pagePuncture Fixture per ASTM D5748-95, D4649. Capacity:4.4 kN (1,000 lbf) Probe:Tip with 0.75 in pear shaped, Teflon coated with 11 in shaft. Clamping ring inner diameter:4 in. Lower fitting:Type Dm (1.25 in connection with 1/2 in clevis pin) Upper fitting:Type Om (12 mm connection with 6 mm clevis pin) Includes a 6 in square specimen cutting Peel, Friction, and Puncture Test Fixtures - InstronPuncture Fixture per ASTM D5748-95, D4649 This fixture is comprised of a lower frame with a clamping mechanism that attaches to the base of the testing system, while a probe attaches to the load cell on the moving crosshead. The probe is then moved onto the specimen at a low rate of travel until failure occurs.