This International Standard provides a basis for a specification applicable to textured yarns made from single or folded yarns of textile glass.

Textured glass yarns can be produced by several types of process. They can be made starting either from a single strand or from two or more strands in which one or more have been “opened” to give the “bulky” aspect of textured yarn.

Textured glass yarn is used in various applications, for example insulation, filtration, the manufacture of decorative textiles, the reinforcement of plastics and the manufacture of packing materials.