ISO 105-E05-2010 PDF

Full title and description

ISO 105‑E05:2010 — Textiles — Tests for colour fastness — Part E05: Colour fastness to spotting: Acid. This part of ISO 105 specifies laboratory methods for determining the resistance of textile colours to the action of dilute organic and mineral acids, providing procedures and severity levels for spotting tests used in quality control and research.

Abstract

ISO 105‑E05:2010 describes a spotting test in which drops of defined acid solutions are applied to textile specimens and gently worked in (typically with a rounded glass rod) to ensure penetration; colour change is then assessed while wet and after drying using the ISO grey scale or instrumental techniques. Four levels of test severity are given so the method can be adapted to different fibre types and end‑uses. Reagent compositions and pH ranges for common acids are specified.

General information

• Status: Published (confirmed International Standard).
• Publication date: July 2010 (Edition 5, 2010).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 59.080.01 (Textiles in general).
• Edition / version: Edition 5 (2010).
• Number of pages: ISO bibliographic record: 3 pages (note: national/adopted versions may show different pagination).

Scope

Specifies laboratory procedures to determine the resistance of colours of textiles (all fibre types and product forms) to spotting by dilute organic and mineral acids. The standard covers preparation of reagents, application of test solutions, test conditions, evaluation (wet and after drying), and interpretation using grey‑scale or instrumental assessment. Four test severities are provided so users can choose the appropriate procedure for the material under test.

Key topics and requirements

• Test principle: application of drops of defined acid solutions to specimens and gentle rubbing to ensure penetration, followed by visual or instrumental assessment of colour change (wet and dry).
• Reagents and concentrations: examples include specified preparations of acetic, hydrochloric, sulfuric and tartaric acids and dilution water quality; pH ranges for test solutions are defined.
• Severity levels: four test procedures of increasing severity are given so tests can be matched to fibre/dye sensitivity.
• Specimen handling: typical specimen sizes and arrangements (fabric, yarn or loose fibre) and requirements for adjacent test fabrics where relevant are described.
• Evaluation and grading: visual comparison against the ISO grey scale (ISO 105‑A02) or instrumental methods (eg. ISO 105‑A05 / A11) to assign colour‑change and staining grades.
• Reporting: required information includes reagent details, test severity used, specimen description, assessment method and assigned grades.

Typical use and users

Used by textile testing laboratories, dye houses, fabric and garment manufacturers, quality control teams, certification bodies and academic researchers to verify dye stability and to investigate staining/spotting risks from acidic exposures during production, use or accidental contact. The method supports product development, QC acceptance criteria and failure analysis.

Related standards

Part of the ISO 105 series (Tests for colour fastness). Related and frequently referenced documents include ISO 105‑A02 (Grey scale for assessing change in colour), ISO 105‑A05 / A11 (instrumental assessment / digital imaging), and other E‑parts such as ISO 105‑E01 (water), E02 (sea water), E03 (chlorinated/swimming‑pool water), E04 (perspiration), E06 (alkali spotting) and E07 (water spotting). Also used alongside wash, light and rubbing tests in the ISO 105 C/D/B/X/N series.

Keywords

colour fastness, spotting, acid, textile testing, ISO 105, grey scale, reagent, pH, staining, quality control

FAQ

Q: What is this standard?

A: ISO 105‑E05:2010 is a part of the ISO 105 family that specifies a laboratory method for assessing how resistant textile colours are to spotting by dilute organic and mineral acids.

Q: What does it cover?

A: It covers test reagents and concentrations, application of acid drops to specimens, test severities, specimen preparation, and assessment procedures (visual grey‑scale or instrumental) for grading colour change and staining.

Q: Who typically uses it?

A: Textile test laboratories, manufacturers and dyeing specialists for product development, acceptance testing, QC and failure investigation; also used by standards bodies and researchers.

Q: Is it current or superseded?

A: The ISO bibliographic record shows ISO 105‑E05:2010 as the published edition (Edition 5, July 2010) and is listed as published/confirmed in ISO records; users should check national adoptions (EN/BS/UNE, etc.) for their local status or later revisions.

Q: Is it part of a series?

A: Yes — it is one part of the ISO 105 “Tests for colour fastness” series; many related parts (A, B, C, D, E, F, etc.) define complementary test methods and assessment tools.

Q: What are the key keywords?

A: Colour fastness, spotting, acid, staining, ISO 105, grey scale, textile testing, pH, reagents.