TS ISO 8159

TS ISO 8159 is a vocabulary standard that brings together the principal terms and definitions used to describe the morphology of textile fibres and yarns. Its focus is the consistent naming of the forms that fibres and yarns can take along the textile chain, so the same structural concept can be understood uniformly in laboratories, specifications and supply-chain documentation.

What the terminology framework covers

The standard addresses the main terms used to describe textile-fibre forms, extending up to and including cabled yarns. It also includes a morphological scheme that shows how the terms relate to one another from a production viewpoint. In practical terms, this helps users see how fibre structures, intermediate assemblies and more complex yarn forms fit into one coherent terminology system.

Explicit boundaries of the document

• It contains only terms of general application.
• Terms specific to particular fibres, such as hemp, silk, textile glass fibre, metal fibre and carbon fibre, are excluded.
• It does not include terms that describe manufacturing or processing methods.
• It also excludes terms used to quantify fibre and yarn properties.

In general technical context, a terminology standard like this does not set performance limits or prescribe test procedures. Its value lies in separating naming and conceptual relationships from measurement or process description, which is especially important in textile engineering, technical communication and product classification. By aligning vocabulary, it reduces ambiguity when describing fibre morphology and yarn architecture.