ASTM D1423/D1423M-16
- Standard Test Method for Twist in Yarns by Direct-Counting
- standard by ASTM International, 07/01/2016
- Category: ASTM
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1.1 This test method covers the determination of the amount and direction of twist at the completion of any stage of twisting in single (spun or filament), plied, cabled, or novelty (exclusive of long-term repeat patterns) yarns. The procedures are designed primarily for yarns in packages, but, with special precautions, they are applicable to yarns taken from fabrics. The procedure for spun yarn in 9.2 is also applicable to rovings.
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