ISO 105-X02-1993 PDF

Full title and description

ISO 105‑X02:1993 — Textiles — Tests for colour fastness — Part X02: Colour fastness to carbonizing: Sulfuric acid. Specifies a laboratory method for determining the resistance of textile colours (principally wool and wool-containing textiles) to a carbonizing treatment using sulfuric acid, with evaluation of colour change using the grey scale.

Abstract

This part of ISO 105 describes a procedure to assess how dyeings withstand the manufacturing operation that removes vegetable impurities by treatment with sulfuric acid at elevated temperature. Test specimens are treated, then dried, baked, rinsed and neutralized; the resulting change in colour and staining is assessed against the grey scale. The method is mainly applicable to wool and textiles containing wool (including blends with acetate or polyamide fibres).

General information

• Status: Published (International Standard; confirmed in subsequent systematic reviews and maintained as the 1993 edition).
• Publication date: 1993‑11 (Edition 4, published 1993).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 59.080.01 (Textiles in general).
• Edition / version: Edition 4 (1993).
• Number of pages: 2 pages (concise test method).

Scope

The standard applies to assessment of the colour fastness of textiles to carbonizing by sulfuric acid intended to remove vegetable impurities during manufacture. It is intended primarily for wool and wool‑containing materials, including certain blends; the scope covers treatment, post‑treatment handling (drying, baking, rinsing, neutralizing) and visual assessment of colour change and staining using the grey scale. It is a practical method for quality control and type‑approval testing where carbonizing is part of processing.

Key topics and requirements

• Test principle: exposure of specimens to sulfuric acid carbonizing treatment followed by controlled rinsing, neutralization and drying, with assessment of colour change.
• Target materials: mainly wool and textiles containing wool; applicable to some blends (e.g., with acetate or polyamide).
• Evaluation: use of the ISO grey scale for assessing change in colour and staining after the treatment.
• Purpose: quality control, manufacturing acceptance and comparison of dyeing resistance to carbonizing processes.
• Format: concise two‑page method intended for adoption in laboratories and industry test protocols.

Typical use and users

Used by textile testing laboratories, wool processors and manufacturers, quality assurance personnel, textile chemists and standards bodies. Typical applications include pre‑production testing, in‑process quality control where carbonizing is used to remove vegetable matter, and validation of dyeing processes and formulations for woollen products.

Related standards

Part of the ISO 105 series (Tests for colour fastness). Closely related items include ISO 105‑A02 (grey scale for assessing change in colour), other ISO 105 parts addressing different agents and conditions (for example ISO 105‑B02, ISO 105‑Z02 and many regional/adopted EN versions). National and regional equivalents (EN ISO versions) exist for harmonized use in Europe.

Keywords

ISO 105, colour fastness, carbonizing, sulfuric acid, wool, textile testing, grey scale, colour change, quality control.

FAQ

Q: What is this standard?

A: ISO 105‑X02:1993 is a short ISO test method that specifies how to determine the resistance of textile dyeings (principally wool) to a sulfuric acid carbonizing treatment used to remove vegetable impurities.

Q: What does it cover?

A: It covers the carbonizing treatment procedure, subsequent rinsing/neutralization and drying, and visual assessment of colour change and staining using the grey scale. The method is designed for use in laboratory and production quality control.

Q: Who typically uses it?

A: Textile test laboratories, wool processors and manufacturers, textile chemists, QA teams and conformity assessment bodies that need to evaluate how dyeings resist sulfuric acid carbonizing.

Q: Is it current or superseded?

A: The 1993 edition (Edition 4) is the published version. ISO’s records show the 1993 edition as the current/confirmed version through periodic review cycles; users should check ISO or their national body for the very latest confirmation or any amendments before relying on the text for compliance.

Q: Is it part of a series?

A: Yes — ISO 105 is a multipart series covering numerous specific colour fastness tests (parts A, B, C … X, Z etc.); X02 is the part that addresses carbonizing with sulfuric acid. Related parts provide test methods for other agents and assessment scales.

Q: What are the key keywords?

A: Colour fastness, carbonizing, sulfuric acid, wool, textile testing, ISO 105, grey scale, quality control.