根据Tex系统中表示的线性密度，指定纺织品玻璃纱线的指定系统。纱线的名称由以下元素组成:使用的玻璃类型纱线类型（连续或短纤维）;纤维的公称直径;线密度，方向，捻数和部件数量。 ISO 1139中给出的单重折叠指定的定义和规则适用于这些纺织品玻璃制品

Specifies a system of designating textile glass yarns based on their linear density expressed in the Tex System. The designation of a yarn consists of following elements: Type of glass used; type of yarn (continous or staple fiber); nominal diameter of fiber; linear density, direction, amount of twist and number of components. The definitions and rules of the singel-to-fold designation given in ISO 1139 are applied to these textile glass products.