ISO 105-Z02-1993 PDF

Full title and description

ISO 105‑Z02:1993 — Textiles — Tests for colour fastness — Part Z02: Colour fastness to metals in the dye‑bath: Iron and copper. This part of ISO 105 specifies a method to assess the effect of metal contaminants (iron and copper or their salts) present in dye‑baths, dyeing equipment, water or steam on the shade produced by a dyeing, by comparing dyeings performed with and without the metal salts and rating the change using the grey scale.

Abstract

The method evaluates the influence of iron and copper (or their salts) on the final colour of dyed textile specimens by producing paired dyeings — one in the presence of the specified metal salts and one in their absence — and assessing the difference in shade with the grey scale for change in colour. The procedure is intended for detection and quantification of shading or shade change caused by metallic contamination in the dye‑bath or process water.

General information

• Status: Published (confirmed as current on review).
• Publication date: 1993-09/1993-10 (Edition 2, 1993).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 59.080.01 (Textiles in general).
• Edition / version: Edition 2 (1993).
• Number of pages: 2 pages (short test method/technical report format).

Scope

This part of ISO 105 applies to textile materials of all kinds and provides a standard procedure for detecting and assessing colour change or contamination caused by iron and copper salts in the dye‑bath or introduced via equipment, water or steam. It is intended for use where metallic contamination can affect shade reproducibility or product quality and where a rapid comparative assessment with the grey scale is appropriate. The standard sets out specimen preparation, test conditions, the use of control dyeings, and the assessment technique.

Key topics and requirements

• Test principle: paired dyeings (with and without specified metal salts) and comparison by grey scale for change in colour.
• Scope of metals: iron and copper (salts) as contaminants in the dye‑bath or introduced from equipment or water/steam.
• Specimen preparation and dyeing conditions: defined to ensure comparable dye uptake between control and test samples.
• Assessment and reporting: use of the grey scale for change in colour, description of results and required test record elements.
• Applicability: suitable for routine quality control, investigations of shade variation, and acceptance testing where metal contamination is suspected.

Typical use and users

Used by textile testing laboratories, quality control teams in fibre/yarn/garment mills, dye houses, research and development groups, certification bodies and standards committees. Typical applications include incoming‑water qualification, equipment contamination investigations, batch‑to‑batch shade troubleshooting, and routine quality checks where metal contamination could affect final colour.

Related standards

Part of the ISO 105 series (Tests for colour fastness). Related and commonly referenced parts include general principles and assessment aids such as ISO 105‑A01 (general principles of testing) and ISO 105‑A02 (grey scale for assessing change in colour), and other ISO 105 parts addressing specific agents and processes (for example parts B and N series). National/adopted equivalents (EN ISO versions) exist in many countries.

Keywords

colour fastness, dye‑bath, metals, iron, copper, metallic contamination, grey scale, textiles, ISO 105, colour change, dyeing test.

FAQ

Q: What is this standard?

A: ISO 105‑Z02:1993 is an ISO test method that specifies how to assess the effect of iron and copper (or their salts) in the dye‑bath or introduced from equipment/water on the shade produced by a dyeing, using comparative dyeings and the grey scale.

Q: What does it cover?

A: It covers specimen preparation, the paired dyeing procedure (with and without specified metal salts), conditions needed to make meaningful comparisons, and assessment/reporting of shade change using the grey scale.

Q: Who typically uses it?

A: Textile and dye‑house quality control personnel, independent testing laboratories, manufacturers, and standards bodies involved in colour quality and reproducibility where metal contamination is a concern.

Q: Is it current or superseded?

A: The published 1993 (Edition 2) version has been subject to ISO periodic review; official ISO records indicate it was reviewed/confirmed and remains published/current as confirmed in recent ISO lifecycle information. Users should check their national standards body or ISO for the latest confirmation status before relying on the text for certification or regulatory purposes.

Q: Is it part of a series?

A: Yes — ISO 105 is a multipart series of standards covering tests for colour fastness; Z02 is one specific part addressing metals in the dye‑bath. Many other parts address bleaching, light fastness, washing, rubbing, and other agents/processes.

Q: What are the key keywords?

A: Colour fastness, metals, iron, copper, dye‑bath, grey scale, textiles, contamination, dyeing test.