ISO 17299-3:2014

Overview

ISO 17299-3:2014 - Textiles - Determination of deodorant property - Part 3: Gas chromatography method specifies a laboratory gas chromatography (GC) procedure to quantify odour-component chemicals in textile deodorant testing. The method targets common odour molecules such as indole, isovaleric acid, 2‑nonenal, and acetic acid (with NaCl) and describes two sample preparation approaches (Method A and Method B). Results are reported as an odour reduction rate (ORR) calculated from GC peak areas.

Key topics and technical requirements

• Scope: GC measurement of gaseous odour components in containers with and without textile specimens to determine deodorant performance.
• Target chemicals: indole, isovaleric acid, 2‑nonenal, acetic acid (with NaCl).
• Two preparation methods:
  • Method A - odour chemical applied in the container without direct contact with the specimen (each chemical tested separately); small-volume application (e.g., 5 µl).
  • Method B - odour solution injected directly onto the specimen (used for acetic acid + NaCl); larger injection volumes (e.g., 850 µl) and heat incubation.
• Sampling and analysis:
  • Headspace sampling with gastight syringes after defined contacting times.
  • GC detection using FID (flame ionization detector) or MSD; Annex A gives example GC parameters (capillary DB‑5 column, injector temp ~250 °C, carrier gas).
• Environmental control: conditioning and testing atmosphere per ISO 139 (standard lab temperature and humidity).
• Calculation: ORR (%) = (Sb − Sm) / Sb × 100, where Sb = average GC peak area without specimen (control) and Sm = average peak area with specimen.

Applications and practical value

• Provides a repeatable, quantitative method for evaluating deodorant/anti‑odour treatments on textiles (fabrics, yarns, fibres).
• Useful for quality control, product development, and comparative testing of finishing chemistries and technologies.
• Enables manufacturers, testing laboratories, and research teams to measure reduction of specific odour chemicals rather than relying solely on sensory panels.
• Supports R&D for deodorizing finishes, performance claims, and troubleshooting odour issues in apparel, home textiles, PPE, and technical textiles.

Who would use this standard

• Textile testing laboratories and QC teams
• Textile chemists and R&D scientists developing deodorant finishes
• Third‑party certification bodies and contract testing services
• Manufacturers validating product performance and marketing claims

Related standards

• ISO 17299‑1 - General principle
• ISO 17299‑2 - Detector tube method
• ISO 17299‑4 - Condensation sampling analysis
• ISO 17299‑5 - Metal‑oxide semiconductor sensors method

Keywords: ISO 17299-3:2014, deodorant property, textiles, gas chromatography, GC method, odour reduction rate, indole, isovaleric acid, nonenal, acetic acid, deodorant testing, FID, textile testing.