ISO 105-N05-1993 PDF

Full title and description

ISO 105-N05:1993 — Textiles — Tests for colour fastness — Part N05: Colour fastness to stoving. A short International Standard that specifies a laboratory method to determine how resistant textile colourings (particularly on animal fibres) are to the action of sulfur dioxide used in stoving/bleaching processes; results are assessed by comparison with grey-scale ratings and by evaluation of staining on adjacent fabrics. The standard is published by the International Organization for Standardization (ISO) and is available in electronic (PDF) and print formats.

Abstract

This part of ISO 105 defines a controlled test in which a composite specimen (including an amount of soap solution) and a composite test-control specimen are exposed to an atmosphere containing sulfur dioxide under specified conditions. The procedure is intended to evaluate change in colour of the specimen and staining of adjacent fabrics caused by stoving/bleaching with sulfur dioxide, with outcomes assessed visually using the grey scale for colour change and staining.

General information

• Status: Published — International Standard (confirmed).
• Publication date: 1993 (Edition 2, published 1993-10).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 59.080.01 (Textiles in general).
• Edition / version: Edition 2 (1993).
• Number of pages: 3 (concise method document).

Scope

ISO 105-N05:1993 applies to textiles of all kinds and in all forms. It specifies a laboratory procedure to determine the resistance of dyed textiles to the action of sulfur dioxide under stoving/bleaching conditions typically used for animal fibres. The scope covers preparation of composite specimens, exposure in a sulfur dioxide atmosphere, and visual assessment of colour change and staining of adjacent fabrics; it does not address other chemical or mechanical ageing effects outside the stoving/bleaching process.

Key topics and requirements

• Purpose and applicability: method for assessing colour resistance to sulfur-dioxide stoving/bleaching for textiles (especially animal fibres).
• Specimen preparation: use of composite specimen(s) including prescribed mass of soap solution and a composite test-control specimen.
• Exposure conditions: controlled atmosphere containing sulfur dioxide under defined temperature/time conditions appropriate for stoving.
• Assessment criteria: visual evaluation of colour change and staining using the grey scale for colour change and the grey scale for staining.
• Use of control/adjacent fabrics to measure staining and cross-transfer of colour.
• Reporting: record of test conditions, specimen identification, grey-scale ratings for colour change and staining, and any deviations from the method.

Typical use and users

Used by textile testing laboratories, quality-control departments of textile mills and dye manufacturers, research groups working on dye/fibre interactions, and conformity/standards bodies. Typical applications include pre-production or quality-control checks for wool and other animal-fibre products, investigation of dye performance during manufacturing bleaching steps, and comparative testing during product development.

Related standards

ISO 105-N05 is one part of the ISO 105 series (Textiles — Tests for colour fastness). Commonly referenced companion parts and related documents include ISO 105-A01 (General principles of testing), ISO 105-A03 (Grey scale for assessing staining), ISO 105-C06 (Colour fastness to domestic and commercial laundering), ISO 105-B02 and other ISO 105 parts covering light, perspiration, rubbing and additional fastness conditions. National and regional adoptions (EN, BS, UNE, ÖNORM, etc.) often publish harmonized versions of ISO 105 parts.

Keywords

colour fastness, stoving, sulphur dioxide, bleaching, textiles, animal fibres, grey scale, test method, ISO 105, quality control, dye fastness

FAQ

Q: What is this standard?

A: ISO 105-N05:1993 is a concise ISO test method that specifies how to assess the resistance of textile colours to sulfur-dioxide stoving/bleaching, using composite specimens and grey-scale assessment.

Q: What does it cover?

A: It covers specimen preparation, exposure of specimens and controls to an atmosphere containing sulfur dioxide under defined conditions, and visual assessment of colour change and staining on adjacent fabrics using grey scales. It is focused specifically on the stoving/bleaching effect of sulfur dioxide and is not a general-purpose ageing or laundering test.

Q: Who typically uses it?

A: Textile testing and quality-control laboratories, dye and fibre manufacturers, product developers, and standards/conformity organizations who need to verify dye performance during processes that include sulfur-dioxide bleaching, particularly for animal fibres such as wool.

Q: Is it current or superseded?

A: ISO 105-N05:1993 is a published ISO part of the ISO 105 series. It remains published and confirmed (i.e., has not been withdrawn or officially superseded) as a separate part of ISO 105. For authoritative confirmation of current status and any later revisions or withdrawals, consult the publishing body (ISO or your national standards body) — the document here is the 1993, Edition 2 version.

Q: Is it part of a series?

A: Yes — ISO 105-N05 is one part of the ISO 105 series (Textiles — Tests for colour fastness), a multi-part collection of standardized test methods covering a range of fastness properties (washing, rubbing, perspiration, light, etc.).

Q: What are the key keywords?

A: colour fastness, stoving, sulfur dioxide, bleaching, textiles, animal fibres, grey scale, ISO 105.