This document specifies a system of designating textile glass yarns (including single, multiple-wound, folded (plied), cabled and textured yarns, strands, slivers and rovings) based on their linear density expressed in the tex system.
EN ISO 2078:2022 history
2022EN ISO 2078:2022 Textile glass - Yarns - Designation (ISO 2078:2022)
2015EN ISO 2078:1994/A1:2015 Textile glass - Yarns - Designation - Amendment 1 (ISO 2078:1993/Amd 1:2015)
1994EN ISO 2078:1994 Textile Glass - Yarns - Designation (ISO 2078 : 1993)