ASTM D2257-20

Standard Test Method for Extractable Matter in Textiles

SIGNIFICANCE AND USE
5.1 This test method may be used for acceptance testing of commercial shipments.  
5.1.1 In case of a dispute arising from differences in reported test results using this test method for acceptance testing of commercial shipments, the purchaser and the supplier should conduct comparative tests to determine if there is a statistical bias between the laboratories. Competent statistical assistance is recommended for the investigation of bias. As a minimum, the two parties should take a group of test specimens which are as homogeneous as possible and which are from a lot of material of the type in question. The test specimens should then be randomly assigned in equal numbers to each laboratory for testing. The average results from the two laboratories should be compared using appropriate statistical analysis and a probability level chosen by the two parties before the testing begins. If a bias is found, either its cause must be found and corrected, or the purchaser and supplier must agree to interpret future test results with consideration to the known bias.  
5.2 This test method is used for the determination of the amounts of naturally present oily or waxy impurities that have not been completely removed from textiles made from animal fibers, and for the determination of the amounts of oily or waxy finishing materials applied to raw materials or textiles during manufacture. See 3.1.1, extractable matter.  
5.3 The test method may be used as a step in the determination of the commercial weight of fiber, yarn, and textile shipments.  
5.4 The International Wool Textile Organization specifies the use of a halogenated hydrocarbon, dichloromethane, also called methylene chloride (CH2Cl2) instead of the solvent specified in this test method (IWTO-10-62(E)).  
5.5 Extractables by mass loss is frequently used for textiles which have a relatively large amount of extractable material to effect a significant mass change.
SCOPE
1.1 This test method covers a procedure for determining the extractable material on most fibers, yarns, and fabrics. Three options are included. Option 1 uses heat and Soxhlet extraction apparatus. Option 2 uses room temperature and extraction funnels. Option 3 uses either Option 1 or Option 2 extraction but provides for calculation of extractable matter from the loss in mass of the material due to the extraction rather than the extractable matter residue.
Note 1: Other standards for the determination of extractable matter in textiles made of specific fibers include: Specification D541, Specification D681, and Test Method D1574.  
1.1.1 The solvents for use in this method are any solvents that the party or parties concerned agreed on; such as, Halogenated Hydrocarbon (HH) chloroform, tetrachloroethane, alcohol (isopropyl or methyl).  
1.1.2 This test method may not extract cross-linked finishes or resins which may be on the textile.  
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. See Sections 6 and 7.  
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

General Information

• Status: Published
• Publication Date: 30-Jun-2020
• ICS: 59.080.20 - Yarns
• Technical Committee: D13 - Textiles
• Drafting Committee: D13.51 - Conditioning, Chemical and Thermal Properties

Standards Content (Sample)

This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: D2257 − 20
Standard Test Method for
1
Extractable Matter in Textiles
This standard is issued under the fixed designation D2257; 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 U.S. Department of Defense.
1. Scope 2. Referenced Documents
2
1.1 This test method covers a procedure for determining the 2.1 ASTM Standards:
extractable material on most fibers, yarns, and fabrics. Three D123 Terminology Relating to Textiles
3
options are included. Option 1 uses heat and Soxhlet extraction D541 Specification for Single Jute Yarn (Withdrawn 1996)
apparatus. Option 2 uses room temperature and extraction D681 Specification for Jute Rove and Plied Yarn for Elec-
3
funnels. Option 3 uses either Option 1 or Option 2 extraction trical and Packing Purposes (Withdrawn 2000)
but provides for calculation of extractable matter from the loss D1574 Test Method for Extractable Matter in Wool and
in mass of the material due to the extraction rather than the Other Animal Fibers
D1909 Standard Tables of Commercial Moisture Regains
extractable matter residue.
and Commercial Allowances for Textile Fibers
NOTE 1—Other standards for the determination of extractable matter in
D2258 Practice for Sampling Yarn for Testing
textiles made of specific fibers include: Specification D541, Specification
D3333 Practice for Sampling Manufactured Staple Fibers,
D681, and Test Method D1574.
Sliver, or Tow for Testing
1.1.1 The solvents for use in this method are any solvents
D4920 Terminology Relating to Conditioning, Chemical,
that the party or parties concerned agreed on; such as,
and Thermal Properties
Halogenated Hydrocarbon (HH) chloroform,
2.2 Other Documents:
tetrachloroethane, alcohol (isopropyl or methyl).
IWTO 10-62(E) Method for Determination of the Dichlo-
1.1.2 This test method may not extract cross-linked finishes 4
romethane Soluble Matter in Combed Wool Sliver
or resins which may be on the textile.
3. Terminology
1.2 The values stated in SI units are to be regarded as
standard. No other units of measurement are included in this
3.1 Definitions:
standard.
3.1.1 extractable matter, n—nonfibrous material in or on a
textile not including water, which is removable by a specified
1.3 This standard does not purport to address all of the
solvent or solvents as directed in a specified procedure.
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
3.1.1.1 Discussion—Nonfibrous material is usually oily,
priate safety, health, and environmental practices and deter-
waxy, resinous, or polymeric in nature, but may also include
mine the applicability of regulatory limitations prior to use.
other material, such as protein, particularly if ethyl alcohol is
See Sections 6 and 7.
used, or in, the extracting solvent.
1.4 This international standard was developed in accor-
3.1.2 For definitions of other moisture terms related to
dance with internationally recognized principles on standard-
textiles, refer to Terminology D4920. For definitions of other
ization established in the Decision on Principles for the
textile terms used in this test method refer to Terminology
Development of International Standards, Guides and Recom-
D123.
mendations issued by the World Trade Organization Technical
Barriers to Trade (TBT) Committee.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
1
This test method is under the jurisdiction ofASTM Committee D13 on Textiles Standards volume information, refer to the standard’s Document Summary page on
and is the direct responsibility of Subcommittee D13.51 on Conditioning, Chemical the ASTM website.
3
and Thermal Properties. The last approved version of this historical standard is referenced on
Current edition approved July 1, 2020. Published August 2020. Originally www.astm.org.
4
approved in 1989. Last previous edition approved in 2012 as D2257 – 98(2012). Available from International Wool Secretariat, Carlton Gardens, London S.W.
DOI: 10.1520/D2257-20. 1, England.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

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D2257 − 20
4. Summary of Test Method 6.2 Thimbles, fat-free cellulose or Alundum, for Option 1.
4.1 The spe
...

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: D2257 − 98 (Reapproved 2012) D2257 − 20
Standard Test Method for
1
Extractable Matter in Textiles
This standard is issued under the fixed designation D2257; 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 U.S. Department of Defense.
1. Scope
1.1 This test method covers a procedure for determining the extractable material on most fibers, yarns, and fabrics. Three
options are included. Option 1 uses heat and Soxhlet extraction apparatus. Option 2 uses room temperature and extraction funnels.
Option 3 uses either Option 1 or Option 2 extraction but provides for calculation of extractable matter from the loss in mass of
the material due to the extraction rather than the extractable matter residue.
NOTE 1—Other standards for the determination of extractable matter in textiles made of specific fibers include: Specification D541, Specification D681,
and Test Method D1574.
1.1.1 The solvents for use in this method are any solvents that the party or parties concerned agreed on; such as, Halogenated
Hydrocarbon (HH) chloroform, tetrachloroethane, alcohol.alcohol (isopropyl or methyl).
1.1.2 This test method may not extract cross-linked finishes or resins which may be on the textile.
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
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 safety, health, and healthenvironmental practices and determine the
applicability of regulatory limitations prior to use. See Sections 6 and 7.
1.4 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
2
2.1 ASTM Standards:
D123 Terminology Relating to Textiles
3
D541 Specification for Single Jute Yarn (Withdrawn 1996)
3
D681 Specification for Jute Rove and Plied Yarn for Electrical and Packing Purposes (Withdrawn 2000)
D1574 Test Method for Extractable Matter in Wool and Other Animal Fibers
D1909 Standard Tables of Commercial Moisture Regains and Commercial Allowances for Textile Fibers
D2258 Practice for Sampling Yarn for Testing
D3333 Practice for Sampling Manufactured Staple Fibers, Sliver, or Tow for Testing
D4920 Terminology Relating to Conditioning, Chemical, and Thermal Properties
2.2 Other Documents:
4
IWTO 10-62(E) Method for Determination of the Dichloromethane Soluble Matter in Combed Wool Sliver
3. Terminology
3.1 Definitions:
1
This test method is under the jurisdiction of ASTM Committee D13 on Textiles and is the direct responsibility of Subcommittee D13.51 on Conditioning and,
Conditioning, Chemical and Thermal Properties.
Current edition approved Feb. 1, 2012July 1, 2020. Published February 2012August 2020. Originally approved in 1989. Last previous edition approved in 19982012 as
D2257 – 98(2004).(2012). DOI: 10.1520/D2257-98R12.10.1520/D2257-20.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
The last approved version of this historical standard is referenced on www.astm.org.
4
Available from International Wool Secretariat, Carlton Gardens, London S.W. 1, England.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D2257 − 20
3.1.1 extractable matter, n—nonfibrous material in or on a textile not including water, which is removable by a specified solvent
or solvents as directed in a specified procedure.
3.1.1.1 Discussion—
Nonfibrous material is usually oily, waxy, resinous, or polymeric in nature, but may also include other material, such as protein,
particularly if ethyl alcohol is used, or in, the extracting solvent.
3.1.2 For definitions of other moisture terms r
...