ISO 105-Z01-1993 PDF

Full title and description

ISO 105‑Z01:1993 — Textiles — Tests for colour fastness — Part Z01: Colour fastness to metals in the dye‑bath: Chromium salts. This part of ISO 105 specifies a test method to determine the effect on the colour of a dye when dyeing in the presence of hexavalent chromium salts; it is intended for use on wool and includes a milder alternative procedure for low‑concentration shading conditions.

Abstract

The standard prescribes a laboratory procedure to assess change in shade (and related staining) of wool dyed in the presence of chromium salts (hexavalent chromium). An alternative, milder test method is given for assessing the effect of chromium at concentrations typical of shading operations. Results are intended for colour‑fastness evaluation and quality control in dyeing processes.

General information

• Status: Published — International Standard (confirmed in ISO review, remains current as of the latest ISO review).
• Publication date: October 1993 (Edition 2, 1993).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 59.080.01 (Textiles — testing and analysis).
• Edition / version: Edition 2 (1993).
• Number of pages: 2 (ISO published document length).

Scope

Applies to wool fibres and woollen fabrics: the document specifies methods to determine the change in colour of a dye when dyeing takes place in the presence of hexavalent chromium salts and provides a milder alternative test for low chromium concentrations encountered during shading. The intent is laboratory assessment for colour‑fastness evaluation and process/quality control in textile dyeing.

Key topics and requirements

• Test purpose: determine effect of chromium (hexavalent) salts in the dye‑bath on dye shade and fastness.
• Material applicability: primarily wool (specimens of wool/fabric).
• Two procedures: a main test method and a milder alternative method (clause 6.3) for assessing low‑concentration shading effects.
• Assessment criteria: change of colour and any staining, evaluated by visual grey scales or instrumental methods as referenced in the ISO 105 series.
• Intended use: quality control, comparative testing and research into dye–metal interactions affecting shade stability.

Typical use and users

Used by textile test laboratories, dye houses, wool and garment manufacturers, quality assurance teams, and R&D groups studying dye chemistry and metal‑induced shade changes. National standards bodies and conformity assessment organizations may reference this part when specifying colour‑fastness procedures for wool.

Related standards

ISO 105 is a multipart series covering colour‑fastness tests (A, B, C, D, E, F, P, X and Z parts). Relevant related parts include ISO 105‑A (general assessment and grey scales), ISO 105‑B (light), ISO 105‑C (washing), ISO 105‑E (water and perspiration), and various other ISO 105 subparts used for assessing change in colour and staining; laboratories typically use these in combination with ISO 105‑Z01 when evaluating textile colour behaviour.

Keywords

colour fastness, colourfastness, chromium salts, hexavalent chromium, dye‑bath, wool, textile testing, ISO 105, shade change, staining, quality control.

FAQ

Q: What is this standard?

A: ISO 105‑Z01:1993 is a part of the ISO 105 series that specifies a test method for assessing the effect of chromium salts in the dye‑bath on the colour of dyes (applicable to wool).

Q: What does it cover?

A: It covers laboratory procedures to determine change of shade and staining caused by hexavalent chromium in the dye‑bath, including a milder alternative procedure for low‑concentration shading. Results support colour‑fastness evaluation and dyeing quality control.

Q: Who typically uses it?

A: Textile testing laboratories, dye manufacturers, wool and garment producers, QA/QC personnel, and R&D teams working on dye chemistry and fastness. National standards bodies and certification labs may reference it for wool testing.

Q: Is it current or superseded?

A: The ISO bibliographic record shows ISO 105‑Z01:1993 (Edition 2) as published in October 1993 and states that this edition was reviewed and confirmed by ISO in recent review cycles (it was last confirmed in ISO's review record), so the 1993 edition remains the current ISO publication for this part. Users should verify the ISO catalogue or their national standards body for any later amendments or national adoptions.

Q: Is it part of a series?

A: Yes — it is one part (Z01) of the multipart ISO 105 series "Textiles — Tests for colour fastness," which contains numerous parts for different agents and test conditions (A, B, C, D, E, F, P, X, Z, etc.). ISO 105 parts are commonly used together to cover comprehensive colour‑fastness testing.

Q: What are the key keywords?

A: colour fastness, chromium, dye‑bath, wool, staining, shade change, ISO 105.