Overview
SIST EN ISO 105-N05:1999 is a European adoption of the ISO 105-N05:1993 international standard, developed by CEN, that specifies a reliable method for testing the colour fastness of textiles to stoving. This test evaluates how resistant textile colours are to sulfur dioxide exposure, particularly important for animal fibres subjected to bleaching. The standard applies to textiles of all types and forms, providing a systematic approach to assess colour durability under conditions simulating industrial bleaching processes.
Key Topics
-
Scope and Purpose
The standard covers a testing method to determine resistance of textile colours to sulfur dioxide as used in stoving, a bleaching technique for animal fibres. It measures colour change and staining on adjacent fabrics.
-
Test Principles
A composite specimen soaked in a specific soap solution and a test-control specimen are exposed together to a sulfur dioxide atmosphere generated by burning sulfur. Colour changes in the test specimen and adjacent staining are subsequently evaluated using standardized grey scales.
-
Specimen Preparation
The textile sample is combined with adjacent fabrics (multifibre or single-fibre) to detect staining effects. Specimens are impregnated with a soap solution before exposure and then evaluated after drying or rinsing based on fabric composition.
-
Assessment Tools
The grey scale for assessing colour change (ISO 105-A02) and staining (ISO 105-A03) are mandatory tools for rating test outcomes, ensuring consistent and objective evaluation.
-
Test Conditions
Exposure takes place in a controlled sulfur dioxide atmosphere within a 10-litre vessel for 16 hours to simulate stoving conditions. Soap solution and water quality are strictly specified to standardize test results.
Applications
-
Textile Industry Quality Control
Manufacturers use SIST EN ISO 105-N05:1999 to verify the resistance of dyed animal fibre textiles to sulphur dioxide bleaching, ensuring colour durability and product quality before market release.
-
Material Research and Development
This standard assists R&D teams in formulating and selecting dyes and treatments that improve textile resistance to bleaching and chemical exposure.
-
Regulatory Compliance
Helps ensure products meet industry and customer specifications regarding colour fastness, supporting compliance with European and international textile quality standards.
-
Performance Benchmarking
Enables comparative testing of different textile products and dyes to promote continuous improvement in colour fastness performance within the industry.
Related Standards
- ISO 105-A01: General principles of testing for colour fastness
- ISO 105-A02: Grey scale for assessing colour change
- ISO 105-A03: Grey scale for assessing staining
- ISO 105-F01 to F08: Adjacent fabrics for staining assessments, including multifibre fabrics (ISO 105-F10)
- ISO 105-N01 to N10: Other particular methods and fastness tests relating to textiles under the comprehensive ISO 105 series for colour fastness
Keywords: SIST EN ISO 105-N05:1999, ISO 105-N05:1993, textile colour fastness test, stoving, sulfur dioxide, textile bleaching resistance, animal fibres, colour durability, grey scale assessment, textile industry standards, CEN textile standards, colour fastness to stoving