ASTM D6775-13
(Test Method)Standard Test Method for Breaking Strength and Elongation of Textile Webbing, Tape and Braided Material
Standard Test Method for Breaking Strength and Elongation of Textile Webbing, Tape and Braided Material
SIGNIFICANCE AND USE
5.1 This test method can be used for acceptance testing of commercial shipments but comparisons should be made with caution because estimates of between-laboratory precision are incomplete.
5.1.1 If there are differences of practical significance between reported test results for two laboratories (or more), comparative tests should be performed to determine if there is a statistical bias between them, using competent statistical assistance. As a minimum, use samples for such comparative tests that are as homogeneous as possible, drawn from the same lot of material as the samples that resulted in disparate results during initial testing, and randomly assigned in equal numbers to each laboratory. The test results from the laboratories involved should be compared using a statistical test for unpaired data, at a probability level chosen prior to the testing series. If bias is found, either its cause must be found and corrected, or future test results for that material must be adjusted in consideration of the known bias.
5.2 Elongation is an indication of the ability of a fiber to absorb energy. The elongation of textile materials must be great enough to withstand strains experienced in processing and end use, and to absorb the energies of applied forces repeatedly.
SCOPE
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 89000 N (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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Designation: D6775 − 13
Standard Test Method for
Breaking Strength and Elongation of Textile Webbing, Tape
1
and Braided Material
This standard is issued under the fixed designation D6775; 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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope definitions of other terms related to textiles used in this
standard, refer to Terminology D123, and D4850.
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 Thistestmethodislimitedtomaterialswithamaximum
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 89000 N (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
2.1 ASTM Standards:
assistance. As a minimum, use samples for such comparative
D76 Specification for Tensile Testing Machines for Textiles
teststhatareashomogeneousaspossible,drawnfromthesame
D123 Terminology Relating to Textiles
lot of material as the samples that resulted in disparate results
D1776 Practice for Conditioning and Testing Textiles
during initial testing, and randomly assigned in equal numbers
D4848 Terminology Related to Force, Deformation and
to each laboratory. The test results from the laboratories
Related Properties of Textiles
involved should be compared using a statistical test for
D4850 Terminology Relating to Fabrics and Fabric Test
unpaired data, at a probability level chosen prior to the testing
Methods
series. If bias is found, either its cause must be found and
corrected, or future test results for that material must be
3. Terminology
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 D4848. For
absorbenergy.Theelongationoftextilematerialsmustbegreat
enough to withstand strains experienced in processing and end
use, and to absorb the energies of applied forces repeatedly.
1
This test method is under the jurisdiction ofASTM Committee D13 on Textiles
and is the direct responsibility of Subcommittee D13.60 on Fabric Test Methods,
3
6. Apparatus
Specific.
Current edition approved July 1, 2013. Published August 2013. Originally
6.1 Tensile Testing Machine, CRE-type, conforming to
approved in 2002. Last previous edition approved in 2011 as D6775 – 02(2011).
Specification D76 with respect to force indication, working
DOI: 10.1520/D6775-13.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on
3
the ASTM website. Apparatus and clamps are commercially available.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
D6775 − 13
FIG. 1 Side View of Clamping Assembly
FIG. 2 Example of Clamping Assembly
range, capacity and verification of recorded elongation, and 6.2 Clamping Assembly, consisting of an upper and lower
designed for operation at a pulling speed of 75 6 25 mm/min
clamp, each a split-
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: D6775 − 02 (Reapproved 2011) D6775 − 13
Standard Test Method for
Breaking Strength and Elongation of Textile Webbing, Tape
1
and Braided Material
This standard is issued under the fixed designation D6775; 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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope
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 89000 N (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.
2. Referenced Documents
2
2.1 ASTM Standards:
D76 Specification for Tensile Testing Machines for Textiles
D123 Terminology Relating to Textiles
D1776 Practice for Conditioning and Testing Textiles
D4848 Terminology Related to Force, Deformation and Related Properties of Textiles
D4850 Terminology Relating to Fabrics and Fabric Test Methods
3. Terminology
3.1 For definitions of terms related to force and deformation used in this test method, refer to Terminology D4848. For
definitions of other terms related to textiles used in this standard, refer to Terminology D123, and D4850.
4. Summary of Test Method
4.1 A specimen is clamped in a tensile testing machine and extended to rupture. The breaking force is determined from a
force-elongation curve or with an interfaced computer. Elongation is determined by calculating the difference between bench marks
before the application of a force and at a specified force.
5. Significance and Use
5.1 This test method can be used for acceptance testing of commercial shipments but comparisons should be made with caution
because estimates of between-laboratory precision are incomplete.
5.1.1 If there are differences of practical significance between reported test results for two laboratories (or more), comparative
tests should be performed to determine if there is a statistical bias between them, using competent statistical assistance. As a
minimum, use samples for such comparative tests that are as homogeneous as possible, drawn from the same lot of material as
the samples that resulted in disparate results during initial testing, and randomly assigned in equal numbers to each laboratory. The
test results from the laboratories involved should be compared using a statistical test for unpaired data, at a probability level chosen
1
This test method is under the jurisdiction of ASTM Committee D13 on Textiles and is the direct responsibility of Subcommittee D13.60 on Fabric Test Methods, Specific.
Current edition approved May 1, 2011July 1, 2013. Published July 2011August 2013. Originally approved in 2002. Last previous edition approved in 20072011 as
D6775 – 02(2007).(2011). DOI: 10.1520/D6775-02R11.10.1520/D6775-13.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
D6775 − 13
prior to the testing series. If bias is found, either its cause must be found and corrected, or future test results for that material must
be adjusted in consideration of the known bias.
5.2 Elongation is an indication of the ability of a fiber to absorb energy. The elongation of textile materials must be great enough
to withstand strains experienced in processing and end use, and to absorb the energies of applied forces repeatedly.
3
6. Apparatus
6.1 Tensile Testing Machine, CRE-type, conformin
...
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