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1.1 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.
1.2 Because of (1) difficulties in selecting uniformly identical specimens, (2) the varying degree of orientation in some plastic films, and (3) the difficulty found in testing highly extensible or highly oriented materials, or both, the reproducibility of the test results may be variable and, in some cases, not good or misleading. Provisions are made in the test method to address oblique directional tearing which may be found with some materials.
1.3 The values stated in SI units are to be regarded as standard. The values given in parentheses are for information only.
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Specific precautionary statements are given in 13.1. Note 1—Film has been arbitrarily defined as sheeting having nominal thickness not greater than 0.25 μm (0.010 in.). Note 2—This standard and ISO 6383-2 are technically equivalent.
Note 1—Film has been arbitrarily defined as sheeting having nominal thickness not greater than 0.25 μm (0.010 in.).
Note 2—This standard and ISO 6383-2 are technically equivalent.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D618 Practice for Conditioning Plastics for Testing
D689 Test Method for Internal Tearing Resistance of Paper
D1004 Test Method for Tear Resistance (Graves Tear) of Plastic Film and Sheeting
D4000 Classification System for Specifying Plastic Materials
D5947 Test Methods for Physical Dimensions of Solid Plastics Specimens
D6988 Guide for Determination of Thickness of Plastic Film Test Specimens
E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
ICS Number Code 83.140.10 (Films and sheets)
UNSPSC Code 13111200(Films); 30265802(Plastic sheet)
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ASTM D1922-09, Standard Test Method for Propagation Tear Resistance of Plastic Film and Thin Sheeting by Pendulum Method, ASTM International, West Conshohocken, PA, 2009, www.astm.orgBack to Top