Sets out methods for determining the amount of twist in yarns in terms of turns per unit length in a given direction. Procedures are given for determining the twist in singles, plied (folded) and cabled yarn.RECONFIRMATION NOTICETechnical Committee TX-020 has reviewed the content of this publication and in accordance with Standards Australia procedures for reconfirmation, it has been determined that the publication is still valid and does not require change.Certain documents referenced in the publication may have been amended since the original date of publication. Users are advised to ensure that they are using the latest versions of such documents as appropriate, unless advised otherwise in this Reconfirmation Notice.Approved for reconfirmation in accordance with Standards Australia procedures for reconfirmation on 6 July 2016.The following are represented on Technical Committee TX-020:Ag ResearchAustralian Wool Processors CouncilAWTA Textile TestingCouncil of Textile and Fashion Industries of AustraliaDrycleaning Institute of AustraliaNational Association of Testing Authorities AustraliaRMIT UniversityThe Textile Institute