Overview
ISO 105-F01:2001 specifies an undyed wool adjacent fabric used as a standard material for assessing staining in colour fastness tests. The document defines physical, chemical and colourimetric requirements for both the wool adjacent fabric under test and a wool reference adjacent fabric, and sets out how to evaluate staining using specified wool and cotton dyed reference fabrics. ISO 105-F01 supports reproducible measurement of staining when textiles are tested for colour fastness to water and washing.
Key topics and technical requirements
- Purpose: Provide a standardized wool adjacent fabric for use in colour fastness (staining) assessments.
- Physical properties:
- Mass per unit area: 125 ± 5 g/m² (determined per ISO 3801).
- Colourimetric requirements (CIE 10° observer, illuminant D65, per ISO 105-J01):
- x = 0.337 ± 0.002, y = 0.356 ± 0.002
- Luminance factor Y = 72 ± 2
- Yellowness (G) = 25 ± 2 (DIN 6167 formula referenced).
- Chemical/quality limits:
- pH of aqueous extract: 7.5 ± 0.5 (ISO 3071).
- Dichloromethane‑soluble matter: 0.5 ± 0.1 % (ISO 3074).
- Solubility in alkali: ≤ 18 % (ISO 3072).
- Staining performance requirements (evaluated with ISO 105-A03 grey scale):
- Colour fastness to water using cotton dyed reference: rating 2–3.
- Colour fastness to water using wool dyed reference: rating 2–3.
- Colour fastness to washing using lighter wool dyed reference: rating 3.
- Colour change vs. standard wool adjacent fabric: ≤ 4–5 on ISO 105-A02 grey scale.
- Test procedures: Composite specimen tests using the reference fabrics and test methods ISO 105-E01 (water) and ISO 105-C02 (washing).
Applications and who uses it
ISO 105-F01 is used where consistent assessment of staining transfer to wool adjacent fabrics is critical:
- Textile test laboratories performing colour fastness testing
- Manufacturers of wool garments, knitwear and woven wool fabrics
- Quality assurance teams in dyeing and finishing mills
- Standards bodies and procurement/specification writers requiring reproducible adjacent-fabric behavior
- Suppliers of reference and adjacent fabrics that manufacture or validate standard test materials
Using ISO 105-F01 ensures comparability of staining results across labs and supports product specification, compliance testing, and manufacturing quality control.
Related standards
Keywords: ISO 105-F01, wool adjacent fabric, colour fastness tests, staining assessment, textile testing, grey scale, wool reference adjacent fabric.