ISO 105-N01-1993 PDF

Full title and description

ISO 105-N01:1993 — Textiles — Tests for colour fastness — Part N01: Colour fastness to bleaching: Hypochlorite. This part of ISO 105 specifies a laboratory test method to assess the resistance of textile dyes (mainly on natural and regenerated cellulose materials) to bleaching baths containing sodium or lithium hypochlorite under conditions typically used in industrial bleaching.

Abstract

The standard prescribes a method in which a textile specimen is agitated in a controlled hypochlorite bleaching solution; the test evaluates change in colour and staining caused by hypochlorite bleaching and is principally applicable to cellulosic materials and their dyed forms. The method is intended for assessing dye stability at various stages of textile processing.

General information

• Status: Published (International Standard — confirmed at most recent ISO review).
• Publication date: 1993 (Edition 2, 1993 — listed as 1993-10; some catalogues list effective date 30 September 1993).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 59.080.01 (Textiles in general).
• Edition / version: Edition 2 (1993).
• Number of pages: 2 (ISO bibliographic listing).

Scope

This part of ISO 105 specifies a laboratory procedure to determine the colour fastness of textile dyes to hypochlorite bleaching solutions (sodium or lithium hypochlorite) at concentrations and conditions commonly used in industrial bleaching. It is mainly applicable to natural and regenerated cellulose materials and to dyed or printed specimens at various processing stages; the procedure provides assessment of both change in the test specimen and staining of adjacent fabrics.

Key topics and requirements

• Definition of the test bath composition and concentrations for sodium or lithium hypochlorite.
• Specimen preparation, agitation/agitation rate and temperature control during exposure.
• Specified exposure time(s) and neutralization/ rinsing procedures after bleaching.
• Assessment criteria for change in colour and staining (grey scales or comparable evaluation methods).
• Applicability primarily to natural and regenerated cellulosic fibres and fabrics; guidance on interpretation for other substrates.
• Integration with the ISO 105 series of colour-fastness methods for comprehensive textile testing.

Typical use and users

Used by textile testing laboratories, quality-control teams in textile manufacturing and finishing mills, dye and chemical suppliers, research laboratories, and conformity assessment bodies to evaluate how dyes perform under hypochlorite bleaching. Typical applications include pre-production QC, batch testing after dyeing or printing, and validation of dye/finish performance when exposure to chlorine-based bleaches is expected.

Related standards

ISO 105-N01 is one part of the broad ISO 105 series on tests for colour fastness. Adjacent and related parts of ISO 105 cover colour fastness to washing, light, dry cleaning, perspiration, chlorinated or pool water and other specific chemical or physical agents; national and regional adoptions (EN/ISO or national translations) and related AATCC methods are commonly used alongside ISO 105 series methods for complementary testing. ISO’s catalogue and the ISO 105-A01 guidance document list many related parts and how they interrelate.

Keywords

ISO 105, colour fastness, bleaching, hypochlorite, sodium hypochlorite, lithium hypochlorite, cellulose, textile testing, dye fastness, quality control.

FAQ

Q: What is this standard?

A: ISO 105-N01:1993 is an International Standard that specifies a laboratory test method for assessing the colour fastness of textiles to hypochlorite bleaching (sodium or lithium hypochlorite).

Q: What does it cover?

A: It covers specimen preparation, test bath composition and concentration, exposure conditions (agitation, temperature, time), neutralization and rinsing, and evaluation criteria for change in colour and staining. The procedure is primarily intended for natural and regenerated cellulose materials.

Q: Who typically uses it?

A: Textile and dye manufacturers, finishing mills, independent testing laboratories, quality-control personnel, and researchers use this standard for routine and comparative testing when exposure to chlorine-based bleaches is relevant.

Q: Is it current or superseded?

A: According to the ISO bibliographic record, ISO 105-N01:1993 (Edition 2) remains published and was last reviewed/confirmed in the ISO systematic review cycle (ISO lists a confirmation in recent review records). Users should check national adoption documents or ISO catalogue updates for any later amendments or regional equivalents before relying on purchase/version details.

Q: Is it part of a series?

A: Yes — ISO 105-N01 is one part of the ISO 105 series of standards dealing with tests for colour fastness. The ISO 105 family contains many parts addressing different agents and conditions (washing, light, perspiration, chlorinated water, non-chlorine bleaching, etc.), and guidance on the series is available in ISO 105-A01 and related listings.

Q: What are the key keywords?

A: Colour fastness, bleaching, hypochlorite, ISO 105, textile testing, cellulose, dye stability, quality control.