This standard specifies the method for determining the twist of air-flow cotton yarn using the one-time untwisting and twisting method and the three-time untwisting and twisting method. This standard is suitable for determining the twist of air-spun cotton yarn. This standard can also be used to determine the twist of pure or blended air-laid yarns of chemical fibers.
FZ/T 10001-1992 history
2016FZ/T 10001-2016 Test twist in single open-end yarn.Untwist-retwist method
2006FZ/T 10001-2006 Test twist in single open-end yarn by the untwist-retwist method
1992FZ/T 10001-1992 Determination of air-end yarn twist Untwisting and twisting method