Procedure:
Tecoflex® extruded tapes were sterilized with single (2.5 megarads and double 5 megarad total) doses of Gamma radiation. The retention of physical properties of these tapes has been recorded at 3 intervals over a 15-month period (see chart). Testing was done in compliance with ASTM D-638-72 for tensile and elongation properties of plastics.
Results:
As the graphs indicate, even after 5 megarads exposure and 15 months post irradiation, the Tecoflex® family of aliphatic polyurethanes continues to retain its outstanding physical properties. |
