ISO 105-X08-1994 PDF

Full title and description

ISO 105‑X08:1994 — Textiles — Tests for colour fastness — Part X08: Colour fastness to degumming. Specifies a laboratory method for determining the resistance of dyed textile materials (excluding loose fibre) to the action of soap solutions such as those used in degumming raw silk; treatment is carried out on a specimen in contact with adjacent fabrics and results are assessed using grey scales.

Abstract

This part of ISO 105 describes a procedure to evaluate change in colour of a test specimen and staining of adjacent fabrics after exposure to soap solutions used for degumming. The standard prescribes treatment, rinsing and drying steps and assessment of colour change and staining using the established grey scales.

General information

• Status: Published (confirmed by ISO review actions).
• Publication date: 1994 (implementation records show 25 August 1994; ISO record lists 1994‑09).
• Publisher: ISO — International Organization for Standardization.
• ICS / categories: 59.080.01 (Textiles in general).
• Edition / version: Edition 4 (1994).
• Number of pages: 2 (short test method publication as recorded by ISO).

Scope

Specifies a test method to determine the resistance of colour on textile materials (all forms except loose fibre) to soap solutions of the type used for degumming raw silk. The method includes sample preparation, exposure to the soap solution while in contact with adjacent fabrics, rinsing, drying and visual assessment of change in colour and staining using grey scales; normative references include ISO 105‑A01, A02 and A03.

Key topics and requirements

• Definition of the degumming test procedure for dyed textiles.
• Preparation and positioning of test specimens in contact with adjacent fabrics.
• Use of specified soap solution(s) and controlled treatment, rinsing and drying steps.
• Assessment criteria: change in specimen colour and staining of adjacent fabrics using ISO grey scales.
• Normative references to general testing principles and grey scales (ISO 105‑A01, A02, A03).

Typical use and users

Used by textile test laboratories, quality control departments in textile and silk processing industries, manufacturers of dyed textiles and standards bodies. Typical applications include verifying dye stability during degumming and ensuring product quality for silk and other delicate textiles where soap-based processing is used.

Related standards

Part of the ISO 105 series (Tests for colour fastness). Closely related normative parts include ISO 105‑A01 (general principles), ISO 105‑A02 (grey scale for assessing change in colour) and ISO 105‑A03 (grey scale for assessing staining); other ISO 105 X-parts cover different specific agents and treatments.

Keywords

colour fastness, degumming, textiles, silk, soap solution, grey scale, ISO 105, test method, staining, dye stability

FAQ

Q: What is this standard?

A: ISO 105‑X08:1994 is an ISO test method that specifies how to assess the colour fastness of dyed textiles to soap solutions used in degumming (not applicable to loose fibre).

Q: What does it cover?

A: It covers specimen preparation, exposure to soap (degumming) solutions while in contact with adjacent fabrics, rinsing and drying procedures, and visual assessment of colour change and staining using ISO grey scales.

Q: Who typically uses it?

A: Textile testing laboratories, manufacturers and processors of silk and other dyed textiles, quality assurance teams and conformity assessment bodies that need to verify dye stability during soap-based processes.

Q: Is it current or superseded?

A: The 1994 edition (Edition 4) is the published edition and ISO records show it has been subject to periodic systematic review and confirmation (the edition was confirmed in ISO reviews, most recently recorded in 2020). Users should check with their national standards body or ISO for any later amendments or replacements before relying on the standard for regulatory conformity.

Q: Is it part of a series?

A: Yes — it is one part of the ISO 105 series (Tests for colour fastness), which contains multiple parts addressing different agents, treatments and assessment methods.

Q: What are the key keywords?

A: Colour fastness; degumming; soap solution; silk; grey scale; dye staining; textile testing; ISO 105.