Standard Test Method for Breaking Strength and Elongation of Textile Webbing, Tape and Braided Material

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1.1 This test method covers the determination of the breaking strength and elongation of textile webbing, tape and braided materials using a split-drum type specimen clamp.
1.2 This test method is limited to materials with a maximum width of 90 mm (3.5 in.) and a maximum breaking strength of no more than 89000N (20000 lb).
1.3 The values stated in either SI units or U.S. Customary units are to be regarded separately as standard. Within the text, the U.S. Customary units are given in parentheses. The values stated in each system are not exact equivalents; therefore, each system shall be used independently of the other.
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.

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Publication Date
09-Apr-2002
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ASTM D6775-02e1 - Standard Test Method for Breaking Strength and Elongation of Textile Webbing, Tape and Braided Material
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Designation:D6775–02
Standard Test Method for
Breaking Strength and Elongation of Textile Webbing, Tape
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and Braided Material
This standard is issued under the fixed designation D 6775; 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 (e) indicates an editorial change since the last revision or reapproval.
1
e NOTE—Figures were added editorially in September 2002.
1. Scope definitions of other terms related to textiles used in this
standard, refer to Terminology D 123, and D 4850.
1.1 This test method covers the determination of the break-
ing strength and elongation of textile webbing, tape and
4. Summary of Test Method
braided materials using a split-drum type specimen clamp.
4.1 A specimen is clamped in a tensile testing machine and
1.2 This test method is limited to materials with a maximum
extended to rupture. The breaking force is determined from a
width of 90 mm (3.5 in.) and a maximum breaking strength of
force-elongation curve or with an interfaced computer. Elon-
no more than 89000N (20000 lb).
gation is determined by calculating the difference between
1.3 The values stated in either SI units or U.S. Customary
bench marks before the application of a force and at a specified
units are to be regarded separately as standard. Within the text,
force.
the U.S. Customary units are given in parentheses. The values
stated in each system are not exact equivalents; therefore, each
5. Significance and Use
system shall be used independently of the other.
5.1 This test method can be used for acceptance testing of
1.4 This standard does not purport to address all of the
commercial shipments but comparisons should be made with
safety concerns, if any, associated with its use. It is the
caution because estimates of between-laboratory precision are
responsibility of the user of this standard to establish appro-
incomplete.
priate safety and health practices and determine the applica-
5.1.1 If there are differences of practical significance be-
bility of regulatory limitations prior to use.
tween reported test results for two laboratories (or more),
comparative tests should be performed to determine if there is
2. Referenced Documents
a statistical bias between them, using competent statistical
2.1 ASTM Standards:
assistance. As a minimum, use samples for such comparative
D 76 Specification for Tensile Testing Machines for Tex-
2 teststhatareashomogeneousaspossible,drawnfromthesame
tiles
3 lot of material as the samples that resulted in disparate results
D 123 Terminology Relating to Textiles
3 during initial testing, and randomly assigned in equal numbers
D 1776 Practice for Conditioning and Testing Textiles
to each laboratory. The test results from the laboratories
D 4848 Terminology for Force, Deformation and Related
3 involved should be compared using a statistical test for
Properties of Textiles
3 unpaired data, at a probability level chosen prior to the testing
D 4850 Terminology Relating to Fabric
series. If bias is found, either its cause must be found and
3. Terminology corrected, or future test results for that material must be
adjusted in consideration of the known bias.
3.1 For definitions of terms related to force and deformation
5.2 Elongation is an indication of the ability of a fiber to
used in this test method, refer to Terminology D 4848. For
absorbenergy.Theelongationoftextilematerialsmustbegreat
enough to withstand strains experienced in processing and end
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This test method is under the jurisdiction ofASTM Committee D13 onTextiles
use, and to absorb the energies of applied forces repeatedly.
and is the direct responsibility of Subcommittee D13.60 on Fabric Test Methods,
Specific.
Current edition approved April 10, 2002. Published August 2002.
2
Annual Book of ASTM Standards, Vol 07.01.
3
Annual Book of ASTM Standards, Vol 07.02.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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D6775–02
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6. Apparatus braid that is at least 2.8 m (3.0 yd) in length from each roll or
piece in the lot sample (see 7.2.1).
6.1 Tensile Testing Machine, CRE-type, conforming to
7.3 TestSpecimens,asproducedmaterial—Fromeachlabo-
Specification D 76 with respect to force indication, working
ratory sampling unit, cut 1 test specimen full-width and at least
range, capacity and verification of recorded elongation, and
designed for operation at a pulling speed of 75 6 25 mm/min 1.4 m (1.5 yd) in length (see 7.2.1).
(3 6 1 in./min).
7.3.1 When testing after abrasion is required, from each
6.2 Clamping Assembly, consisting of an upper and lower
laboratory sampling unit,
...

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