Overview
ISO 8516:2011 is an international standard that establishes the basis for specifications for textured yarns made from textile glass. Textured glass yarns, produced from single or folded yarns, are created through various processes that give the yarn a bulky, textured appearance. This standard defines key characteristics, testing methods, and quality criteria essential for manufacturers, suppliers, and users in industries utilizing textile glass textured yarns. Applications include insulation, filtration, decorative textiles, reinforcement of plastics, and packaging materials, making ISO 8516:2011 crucial for quality assurance and specification development in these sectors.
Key Topics
- Scope of Application: Defines textured yarns from single or multiple glass strands with a "bulky" texture, specifying the processes and materials used.
- Designation: Yarn identification must comply with ISO 2078 for consistent naming conventions.
- Physical Properties: Detailed requirements cover:
- Type of glass used in the yarn (referencing ISO 2078).
- Size content for lubrication during texturizing, measurable via ISO 1887.
- Average filament diameter (ISO 1888).
- Linear density of the yarn, determined per ISO 1889.
- Moisture content assessed using ISO 3344.
- Breaking load and yield strength tested according to ISO 3341.
- Visual Quality and Defects: Specification includes acceptable visual criteria and defect classifications of yarn and packages, such as:
- Dirty or damaged yarn.
- Incorrect number or mixed yarns.
- Incomplete texturization.
- Package issues like hardness, trapped foreign matter, or incorrect identification.
- Delivery Requirements: Packaging and labelling must feature essential information such as yarn designation, package type, net mass, supplier name, and manufacturing date.
- Storage Conditions: Recommendations for temperature, humidity, and duration to maintain yarn property integrity over time.
Applications
ISO 8516:2011 textured glass yarns are widely applied in industries including: