ASTM D2102-02

Standard Test Method for Shrinkage of Textile Fibers (Bundle Test)

SCOPE
1.1 This test method covers the measurement of the unrestrained shrinkage of a bundle of crimped or uncrimped fibers from exposure to some environment, for instance, boiling water for 15 min.
1.1.1 This test method may be used on fibers from tow and fibers removed from spun or continuous filament yarn.
Note 1—For measurement of shrinkage of single fibers, refer to Test Method D 5104.
1.2 The values stated in either inch-pound or SI units are to be regarded separately as the standard. The values stated in each system are not exact equivalents, therefore, each system must be used independently of the other.
1.3 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.

General Information

• Status: Historical
• Publication Date: 09-Aug-2002
• ICS: 59.060.01 - Textile fibres in general
• Technical Committee: D13 - Textiles
• Drafting Committee: D13.58 - Yarns and Fibers

Relations

• Replaces: ASTM D2102-96 - Standard Test Method for Shrinkage of Textile Fiber Bundle Test
• Effective Date: 10-Aug-2002
• Replaced By: ASTM D2102-02(2007) - Standard Test Method for Shrinkage of Textile Fibers (Bundle Test)
• Effective Date: 01-Jul-2007
• Referred By: ASTM C717-19 - Standard Terminology of Building Seals and Sealants
• Effective Date: 10-Aug-2002
• Referred By: ASTM D4849-21 - Standard Terminology Related to Yarns and Fibers
• Effective Date: 10-Aug-2002

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:D2102–02
Standard Test Method for
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Shrinkage of Textile Fibers (Bundle Test)
This standard is issued under the fixed designation D 2102; 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. Scope 3.1.1 For the definition of shrinkage used in this test
method, refer to Terminology D 4849. For other textile terms
1.1 This test method covers the measurement of the unre-
used in this test method, refer to Terminology D 123 and
strained shrinkage of a bundle of crimped or uncrimped fibers
Terminology D 4849.
from exposure to some environment, for instance, boiling
water for 15 min.
4. Summary of Test Method
1.1.1 This test method may be used on fibers from tow and
4.1 Auniformbundleofconditionedparallelfibersislightly
fibers removed from spun or continuous filament yarn.
loaded between clamps and the nip to nip length measured.
NOTE 1—For measurement of shrinkage of single fibers, refer to Test
Without being removed from the clamps, the bundle specimen
Method D 5104.
is then exposed to the test environment, typically, boiling water
1.2 The values stated in either inch-pound or SI units are to
for 15 min. After reconditioning, the bundle length is remea-
be regarded separately as the standard. The values stated in
sured under the same light loading.
each system are not exact equivalents, therefore, each system
NOTE 2—Due to the very high variability of the shrinkage of individual
must be used independently of the other.
fibers of high shrinkage types, to obtain a reliable average value would
1.3 This standard does not purport to address all of the
require an excessive number of determinations, each rather tedious. The
safety concerns, if any, associated with its use. It is the
bundle method does not give the true average value, but rather a weighted
responsibility of the user of this standard to establish appro- value approaching the highest shrinkage fiber in the bundle. Since the
weighted value more closely approximates the properties found in a high
priate safety and health practices and determine the applica-
bulk yarn made from such fibers, the weighted value would seem to be
bility of regulatory limitations prior to use.
more appropriate.
2. Referenced Documents
5. Significance and Use
2.1 ASTM Standards:
5.1 Limited accuracy in measuring the change in length
2
D 123 Terminology Relating to Textiles
produces errors in estimating values for shrinkage below 10 %.
2
D 1577 Test Methods for Linear Density of Textile Fibers
However, this test is being used for low level shrinkage fibers
2
D 1776 Practice for Conditioning and Testing Textiles
because the results give have been found to give an adequate
2
D 2258 Practice for Sampling Yarn for Testing
indication of average shrinkage at the lower levels. The test is
D 3333 Practice for Sampling Manufactured Staple Fibers,
notadequatefordeterminingvariabilityinaverageshrinkageat
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Sliver, or Tow for Testing
low levels. If there are differences of practical significance
3
D 4849 Terminology Relating to Fibers and Yarns
between reported test results for two laboratories (or more),
D 5104 Test Method for Shrinkage for Textile Fibers
comparative tests should be performed to determine if there is
3
(Single-Fiber Test)
a statistical bias between them, using competent statistical
assistance. As a minimum, use the samples for such a com-
3. Terminology
parative tests that are as homogeneous as possible, drawn from
3.1 Definitions:
thesamelotofmaterialasthesamplesthatresultedindisparate
results during initial testing and randomly assigned in equal
numbers to each laboratory. The test results from the labora-
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This test method is under the jurisdiction of the ASTM Committee D13 on
tories involved should be compared using a statistical test for
Textiles and is the direct responsibility of Subcommittee D13.58 on Yarn Test
Methods, General.
unpaired data, a probability level chosen prior to the testing
Current edition approved August 10, 2002. Published November 2002. Origi-
series. If a bias is found, either its cause must be found and
nally published as D 2102 – 62 T. Last previous edition D 2102 – 96.
2 corrected, or future test results for that material must be
Annual Book of ASTM Standards, Vol 07.01.
3
Annual Book of ASTM Standards, Vol 07.02. adjusted in consideration of the known bias.
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D2102–02
5.2 This test method for testing the shrinkage of fibers is not 7.3.1 If testing fibers from yarn, c
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