Reinforcement yarns. Determination of twist balance index has-hardcopy BS EN 61143-1 classifies recorders

BS EN 61143-1 classifies recorders and their non-interchangeable accessories according to their accuracy classes related to the measurand and to timekeeping

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Reinforcement yarns. Determination of twist balance index has-hardcopy BS EN 61143-1 classifies recorders1 Scope This International Standard specifies a method for determining the twist balance index of folded yarn and cabled yarn made from textile glass, carbon, aramid or any other reinforcement fibre.