21/30429719 DC

This standard 21/30429719 DC BS EN 17679. Testing of plastics films. Tear test using trapezoidal test specimen with incision is classified in these ICS categories:

• 83.140.10 Films and sheets

This document specifies a method of determining the tear resistance of a plastic film under specified conditions. It is applicable to products that, because of their flexibility, do not tear when clamped between the grips of a tensile testing machine. The method makes it possible to compare samples of different products provided their thickness does not differ by more than 10 %.