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Last Updated: Jun 27, 2025
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ASTM D2644-12(2018)
Standard Tolerances for Yarns Spun on the Woolen System
Standard Tolerances for Yarns Spun on the Woolen System
D2644-12R18
ASTM|D2644-12R18|en-US
Standard Tolerances for Yarns Spun on the Woolen System
Standard
D2644 Standard Tolerances for Yarns Spun on the Woolen System>
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BOS Vol. 07.01 Committee D13
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ASTM International
Scope
1.1 These tolerances are applicable to all yarns spun on the woolen system and composed of any fiber or mixture of fibers, even though there might not be any wool present in the yarn.
Note 1: For tolerances for other spun yarns, see Tolerances D2645 .
1.2 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.