ASTM D1922-03

Standard Test Method for Propagation Tear Resistance of Plastic Film and Thin Sheeting by Pendulum Method

SCOPE
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 compensate for oblique directional tearing which may be found with some materials.
1.3 The values stated in SI units are to be regarded as the 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—This standard and ISO 6383-2 are technically equivalent.

General Information

• Status: Historical
• Publication Date: 09-Mar-2003
• ICS: 83.140.10 - Films and sheets
• Technical Committee: D20 - Plastics
• Drafting Committee: D20.19 - Film, Sheeting, and Molded Products

Relations

• Replaces: ASTM D1922-00a - Standard Test Method for Propagation Tear Resistance of Plastic Film and Thin Sheeting by Pendulum Method
• Effective Date: 10-Mar-2003
• Replaced By: ASTM D1922-03a - Standard Test Method for Propagation Tear Resistance of Plastic Film and Thin Sheeting by Pendulum Method
• Effective Date: 01-Nov-2003
• Referred By: ASTM D5047-17 - Standard Specification for Polyethylene Terephthalate Film and Sheeting
• Effective Date: 10-Mar-2003
• Referred By: ASTM D2103-15 - Standard Specification for Polyethylene Film and Sheeting
• Effective Date: 10-Mar-2003
• Referred By: ASTM D4869/D4869M-16a(2021) - Standard Specification for Asphalt-Saturated Organic Felt Underlayment Used in Steep Slope Roofing
• Effective Date: 10-Mar-2003
• Referred By: ASTM D8065/D8065M-16 - Standard Classification System and Basis for Specification for Specifying Plastic Films
• Effective Date: 10-Mar-2003
• Referred By: ASTM F2097-20 - Standard Guide for Design and Evaluation of Primary Flexible Packaging for Medical Products
• Effective Date: 10-Mar-2003
• Referred By: ASTM D4635-16 - Standard Specification for Plastic Films Made from Low-Density Polyethylene and Linear Low-Density Polyethylene for General Use and Packaging Applications
• Effective Date: 10-Mar-2003
• Referred By: ASTM A674-22 - Standard Practice for Polyethylene Encasement for Ductile Iron Pipe
• Effective Date: 10-Mar-2003
• Referred By: ASTM D8195-18 - Standard Classification System and Basis for Specification for Polyethylene Terephthalate Film and Sheeting
• Effective Date: 10-Mar-2003
• Referred By: ASTM F2902-16e1 - Standard Guide for Assessment of Absorbable Polymeric Implants
• Effective Date: 10-Mar-2003
• Referred By: ASTM D228/D228M-21 - Standard Test Methods for Sampling, Testing, and Analysis of Asphalt Roll Roofing, Cap Sheets, and Shingles Used in Roofing and Waterproofing
• Effective Date: 10-Mar-2003
• Referred By: ASTM D1593-22 - Standard Specification for Nonrigid Vinyl Chloride Plastic Film and Sheeting
• Effective Date: 10-Mar-2003
• Referred By: ASTM D3420-21 - Standard Test Method for Pendulum Impact Resistance of Plastic Film
• Effective Date: 10-Mar-2003
• Referred By: ASTM D3462/D3462M-23 - Standard Specification for Asphalt Shingles Made from Glass Felt and Surfaced with Mineral Granules
• Effective Date: 10-Mar-2003

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Please contact ASTM International (www.astm.org) for the latest information.
Designation: D 1922 – 03
Standard Test Method for
Propagation Tear Resistance of Plastic Film and Thin
1
Sheeting by Pendulum Method
This standard is issued under the fixed designation D 1922; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (ϵ) indicates an editorial change since the last revision or reapproval.
1. Scope* D 374 Test Methods for Thickness of Solid Electrical Insu-
3
2
lation
1.1 This test method covers the determination of the
4
D 618 Practice for Conditioning Plastics for Testing
average force to propagate tearing through a specified length of
D 689 Test Method for Internal Tearing Resistance of Pa-
plastic film or nonrigid sheeting after the tear has been started,
5
per
using an Elmendorf-type tearing tester. Two specimens are
D 1004 Test Method for Initial Tear Resistance of Plastic
cited, a rectangular type, and one with a constant radius testing
4
Film and Sheeting
length. The latter shall be the preferred or referee specimen.
D 4000 Classification System for Specifying Plastic Mate-
1.2 Because of (1) difficulties in selecting uniformly iden-
6
rials
tical specimens, (2) the varying degree of orientation in some
E 691 Practice for Conducting an Interlaboratory Study to
plastic films, and (3) the difficulty found in testing highly
7
Determine the Precision of a Test Method
extensible or highly oriented materials, or both, the reproduc-
2.2 ISO Standard:
ibilityofthetestresultsmaybevariableand,insomecases,not
ISO 6383-2 Plastics—Film and Sheeting—Determination
good or misleading. Provisions are made in the test method to
8
of Tear Resistance—Part 2 Elmendorf Method
compensateforobliquedirectionaltearingwhichmaybefound
with some materials.
3. Summary of Test Method
1.3 The values stated in SI units are to be regarded as the
3.1 The force in grams required to propagate tearing across
standard. The values given in parentheses are for information
a film or sheeting specimen is measured using a precisely
only.
calibrated pendulum device. Acting by gravity, the pendulum
1.4 This standard does not purport to address all of the
swings through an arc, tearing the specimen from a precut slit.
safety concerns, if any, associated with its use. It is the
The specimen is held on one side by the pendulum and on the
responsibility of the user of this standard to establish appro-
other side by a stationary member. The loss in energy by the
priate safety and health practices and determine the applica-
pendulum is indicated by a pointer. The scale indication is a
bility of regulatory limitations prior to use. Specific precau-
function of the force required to tear the specimen.
tionary statements are given in 13.1.
NOTE 1—This standard and ISO 6383-2 are technically equivalent. 4. Significance and Use
4.1 This test method is of value in ranking relative tearing
2. Referenced Documents
resistance of various plastic films and thin sheeting of compa-
2.1 ASTM Standards:
rable thickness. Experience has shown the test to have its best
reliability on relatively less extensible films and sheeting.
Variable elongation and oblique tearing effects on the more
1
This test method is under the jurisdiction ofASTM Committee D20 on Plastics
extensiblefilmsprecludeitsuseasapreciseproduction-control
and is the direct responsibility of Subcommittee D20.19 on Film and Sheeting.
tool for these types of plastics.This test method should be used
Current edition approved March 10, 2003. Published April 2003. Originally
for specification acceptance testing only after it has been
approved in 1961. Last previous edition approved in 2000 as D 1922 – 00a.
2
demonstrated that the data for the particular material are
This test method has been adapted from TAPPI Standard Method T 414M-49,
Internal Tearing Resistance of Paper. In testing certain plastic films, problems of
acceptably reproducible. This test method should be used for
reproducibility and interpretation of results are encountered which require special
treatment to make the test method of most value. This test method is revised here
specifically for use with plastic film and thin sheeting. For more complete
3
explanation of certain aspects of the equipment, its calibration and adjustment, refer Annual Book of ASTM Standards, Vol 10.01.
4
to TAPPI Standard Method T 414M-49. Annual Book of ASTM Standards, Vol 08.01.
5
The following additional references may be of interest in connection with this Annual Book of ASTM Standards, Vol 15.09.
6
test method: Annual Book of ASTM Standards, Vol 08.02.
7
Painter,E.V.,Chu,C.C.,andMorgan,H.M.,“TestingTextilesontheElmendorf Annual Book of ASTM Standards, Vol 14.02.
8
Tear Tester,” Textile Research Journal, Vol
...