ISO 105-A11-2012 PDF

Full title and description

ISO 105‑A11:2012 — Textiles — Tests for colour fastness — Part A11: Determination of colour fastness grades by digital imaging techniques. Specifies requirements for a digital imaging system used to determine change in colour and staining of textile specimens using image‑based assessment methods.

Abstract

This part of ISO 105 defines apparatus, equipment settings and calibration procedures for a digital imaging system intended to determine colour change and staining in textile specimens. It describes how digital imaging is used to assign colour‑fastness grades (change in colour and staining) in the methods given in the standard's annexes. The method is not intended for assessment of colour fastness to light as covered by the ISO 105‑B series.

General information

• Status: Published (International Standard; confirmed on review).
• Publication date: 17 September 2012.
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 59.080.01 (Textiles in general).
• Edition / version: Edition 1 (2012).
• Number of pages: 16.

Scope

Specifies requirements for a calibrated digital imaging system for use with the procedures in Annex A and Annex B of the part, for determining (a) change in colour of test specimens and (b) staining of adjacent fabrics by digital imaging techniques. The part sets out apparatus, illumination and camera settings, calibration routines, verification charts and reporting requirements needed to obtain reproducible image‑based colour‑fastness grades. It excludes assessment of light fastness tests in the ISO 105‑B series (those use grey scales and are not suitable for this imaging approach).

Key topics and requirements

• Specification of imaging apparatus (camera or scanner) and stable illumination conditions.
• Calibration procedures and verification chart requirements to ensure measurement repeatability.
• Recommended equipment settings, image capture geometry and sample presentation.
• Image processing and evaluation workflow to derive colour change and staining grades.
• Annex A: method for assessment of change in colour using digital images.
• Annex B: method for assessment of staining using digital images and adjacent fabrics.
• Annex C: verification chart; Annex D: reporting format and summary of international trial results.
• Limitations and applicability (not for ISO 105‑B light fastness tests).

Typical use and users

Used by textile testing laboratories, quality‑control departments in textile and apparel manufacturing, colour specialists and technologists, instrument and camera manufacturers developing imaging solutions for textile testing, research and development teams working on colour measurement, and accreditation bodies that assess laboratory conformity to test methods. Also referenced by standards developers and educators in textile technology.

Related standards

Part of the ISO 105 series (Textiles — Tests for colour fastness). Related parts and complementary standards include ISO 105‑A01 (general principles of testing), various ISO 105 C/E/B parts covering washing, water, perspiration and light fastness tests, and other ISO 105 family methods and reference materials used for grey‑scale and adjacent fabric evaluations.

Keywords

ISO 105, colour fastness, digital imaging, image analysis, textiles, staining, change in colour, calibration, verification chart, test method, colour assessment.

FAQ

Q: What is this standard?

A: ISO 105‑A11:2012 is a part of the ISO 105 series specifying how to use a calibrated digital imaging system to determine colour‑fastness grades (change in colour and staining) for textile specimens.

Q: What does it cover?

A: It covers apparatus and equipment settings, calibration and verification procedures, image capture and evaluation workflows, and reporting requirements for determining change in colour and staining by digital imaging techniques (see Annexes A–D for methods, verification chart and reporting guidance).

Q: Who typically uses it?

A: Textile testing laboratories, manufacturers' quality teams, colour technologists, instrument vendors developing imaging test systems, R&D teams, and accreditation/standards bodies.

Q: Is it current or superseded?

A: The document was published on 17 September 2012 (Edition 1). It has been maintained under ISO's periodic review cycle and was confirmed on review; the 2012 edition remains the published edition. Users should check with ISO or their national standards body for any amendments or newer editions before assuming long‑term applicability.

Q: Is it part of a series?

A: Yes — ISO 105 is a multi‑part series of methods for tests for colour fastness of textiles; ISO 105‑A11:2012 is one part (A11) focusing specifically on digital imaging techniques.

Q: What are the key keywords?

A: Colour fastness, digital imaging, textiles, staining, colour change, calibration, verification chart, image analysis, ISO 105.