ASTM D1922

Standard Test Method for Propagation Tear Resistance of Plastic Film and Thin Sheeting by Pendulum Method - This test method covers the determination of the average force to propagate tearing through a specified length of plastic film or nonrigid sheeting after the tear has been started, using an Elmendorf-type tearing tester. Two specimens are cited, a rectangular type, and one with a constant radius testing length. The latter shall be the preferred or referee specimen.