ASTM D2258-99(2005)
(Practice)Standard Practice for Sampling Yarn for Testing
Standard Practice for Sampling Yarn for Testing
SCOPE
1.1 This practice describes a procedure for the division of shipments of yarn into test lots and the sampling of such lots for testing.
1.2 This practice is applicable to single, plied, or cabled yarns, and cords, made of any fiber or mixture of fibers, and supported on any form of package, including beams.
1.3 This practice also describes procedures for the sampling of yarn(s) removed from woven or knitted fabrics, however, when thus sampled, the yarns are usually not representative of entire shipments, as referred to in . Consequently, the resultant sampling can only be used to determine the characteristics of the yarn and is usually not used for acceptance testing. Moreover, it should be recognized that the characteristics of yarns from fabrics may be different than the characteristics of the same yarn(s), prior to being entered into the fabric manufacturing process.
1.4 The values stated in either SI units or inch-pound units are to be regarded separately as the standard. Within the text, the inch-pound units are shown in parentheses. The values stated in each system are not exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with this practice.
1.5 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:D2258–99 (Reapproved 2005)
Standard Practice for
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Sampling Yarn for Testing
This standard is issued under the fixed designation D2258; 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.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope D1578 Test Method for Breaking Strength of Yarn in Skein
Form
1.1 This practice describes a procedure for the division of
D1907 Test Method for Linear Density of Yarn (Yarn
shipments of yarn into test lots and the sampling of such lots
Number) by the Skein Method
for testing.
D4271 Practice for Writing Statements on Sampling in Test
1.2 This practice is applicable to single, plied, or cabled
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Methods for Textiles
yarns, and cords, made of any fiber or mixture of fibers, and
supported on any form of package, including beams.
3. Terminology
1.3 This practice also describes procedures for the sampling
3.1 Definitions:
of yarn(s) removed from woven or knitted fabrics, however,
3.1.1 beam, n—in textiles, a large spool containing many
when thus sampled, the yarns are usually not representative of
ends of yarns wound parallel, and used for such purposes as
entire shipments, as referred to in 1.1. Consequently, the
weaving or warp knitting.
resultant sampling can only be used to determine the charac-
3.1.2 beam set, n—in textiles, one or more beams of yarn in
teristics of the yarn and is usually not used for acceptance
a single shipment to be further processed together for a specific
testing. Moreover, it should be recognized that the character-
end use.
istics of yarns from fabrics may be different than the charac-
3.1.3 bulk sample, n— in the sampling of bulk material, one
teristics of the same yarn(s), prior to being entered into the
or more portions which (1) are taken from material that does
fabric manufacturing process.
not consist of separately identifiable units and (2) can be
1.4 The values stated in either SI units or inch-pound units
identified after sampling as separate or composited units.
are to be regarded separately as the standard. Within the text,
3.1.4 case, n—in textiles, a shipping unit, usually a carton,
the inch-pound units are shown in parentheses. The values
box, bale, or other container holding a number of yarn
stated in each system are not exact equivalents; therefore, each
packages.
system shall be used independently of the other. Combining
3.1.5 cone, n—in textiles, (1) a yarn holder or bobbin of
values from the two systems may result in nonconformance
conical shape used as a core for a yarn package of conical
with this practice.
form, also called a cone core. (2) the yarn package obtained
1.5 This standard does not purport to address all of the
when yarn is wound upon a cone core.
safety concerns, if any, associated with its use. It is the
3.1.6 end, n—an individual sliver, roving, yarn, or cord.
responsibility of the user of this standard to establish appro-
3.1.6.1 Discussion—For yarns, one of the one or more
priate safety and health practices and determine the applica-
continuous, multiple parallel lengths of yarn which may be
bility of regulatory limitations prior to use.
wound on a yarn package or beam. For example, two lengths
2. Referenced Documents of yarn wrapped parallel on a single bobbin constitute two yarn
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ends, likewise, one thousand lengths of yarn wrapped parallel
2.1 ASTM Standards:
on a single beam constitutes one thousand yarn ends.
D123 Terminology Relating to Textiles
3.1.7 fabric package, n—a length of fabric in a form
suitable for handling, storing, or shipping.
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ThispracticeisunderthejurisdictionofASTMCommitteeD13onTextilesand
3.1.7.1 Discussion—Fabric packages may be unsupported,
is the direct responsibility of Subcommittee D13.58 on Yarns and Fibers.
such as when folded in cases, or supported, such as on tubes,
Current edition approved April 1, 2005. Published July 2005. Originally
bolts, or creels. Fabric packages are frequently referred to as
approved in 1964. Last previous edition approved in 1999 as D2258 – 99. DOI:
10.1520/D2258-99R05. rolls or pieces.
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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
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Standards volume information, refer to the standard’s Document Summary page on Withdrawn. The last approved version of this historical standard is referenced
the ASTM website. on www.astm.org.
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