Overview
CEN ISO/TR 11827:2016 (identical to ISO/TR 11827:2012) is a Technical Report that provides a comprehensive framework for textile composition testing by the identification of natural and man‑made fibres. It describes accepted procedures and complementary techniques (microscopy, solubility, spectroscopy, thermal and density methods, etc.) and can be used to coordinate with quantitative methods for analysing fibre blends. The report is informative in nature and was endorsed by CEN in 2016 without modification.
Key topics and technical requirements
- Scope and purpose
- Identification of animal, vegetable, mineral and man‑made fibres.
- Coordination with quantitative analysis methods where necessary (e.g., fibre blends).
- Techniques covered
- Microscopy: light microscopy (transmitted light), scanning electron microscopy (photomicrographs and SEM images), refractive index and mounting media guidance.
- Chemical tests: solubility tests (zinc chloride, sodium hydroxide, formic acid mixtures), staining and iodine-based reagents.
- Combustion and flame tests: burning behaviour and melt/char characteristics.
- Spectroscopy: FT‑IR and ATR‑FTIR for molecular identification (examples of spectra included).
- Thermal analysis: Differential Scanning Calorimetry (DSC), ThermoGravimetric Analysis (TGA) and melting point determination.
- Density and elemental analysis: density gradient columns, Energy‑Dispersive X‑ray (EDX).
- Apparatus and reagents
- Lists required instruments (microscopes, FT‑IR, DSC, TGA, melting point devices) and preparation of analytical reagent solutions.
- Supporting information
- Informative annexes with photomicrographs, SEM images, solubility tables, example IR spectra, thermal transition data and density tables.
- Safety
- Notes on hazardous reagents/procedures and legal responsibilities for health and environmental protection.
Practical applications and users
- Textile testing laboratories performing fibre identification and composition verification.
- Manufacturers and quality assurance teams ensuring product labelling accuracy and material traceability.
- Customs and regulatory bodies checking compliance with textile labelling and import regulations (fibre composition is often a legal requirement).
- Retailers and product developers verifying supplier claims on fibre content.
- Forensic and research laboratories investigating fibre evidence or material properties.
Related standards
- ISO 1833‑4 (quantitative chemical analysis - protein fibre mixtures)
- ISO 2076 (man‑made fibres - generic names)
- ISO 6938 (natural fibres - generic names and definitions)
Keywords: textile composition testing, fibre identification, ISO/TR 11827, CEN ISO/TR 11827:2016, FT‑IR spectroscopy, microscopy, solubility tests, thermal analysis, density measurement.