SIST EN ISO 14362-1:2017 PDF

Overview

EN ISO 14362-1:2017 (ISO 24362-1:2014) specifies a laboratory method for the detection of certain aromatic amines derived from azo colorants in textiles. The standard is intended to detect the use of azo colorants that are either accessible to a reducing agent without extraction (e.g., dyes and pigments on cellulosic, protein and some synthetic fibres) or accessible only after extraction (disperse dyes on man‑made fibres). It applies to all coloured textiles including dyed, printed and coated textiles and was prepared by ISO/TC 38 in collaboration with CEN (superseding EN 14362-1:2012).

Key topics and technical requirements

• Scope of detection: Targeted at azo colorants that can release a set of restricted aromatic amines on reductive cleavage.
• Fibre categories:
  • Accessible without extraction: cellulosic (cotton, viscose), protein (wool, silk), and synthetic (polyamide, acrylic).
  • Accessible with extraction: man‑made fibres dyed with disperse dyes (polyester, polyamide, acetate, triacetate, acrylic, chlorofibre, etc.).
• Analytical workflow (high level; detailed procedures in the standard):
  • Sampling and test‑specimen preparation including considerations for fibre blends and printed materials.
  • Extraction for disperse dyes where applicable.
  • Reductive cleavage to liberate aromatic amines from azo bonds.
  • Separation and concentration of liberated amines.
  • Detection and quantification, with chromatographic analyses and check procedures described in annexes.
• Supporting content: Includes annexes on chromatographic analysis, method reliability, interpretation guidance, and alternative extraction procedures. Normative reference: ISO 3696 (water for analytical laboratory use).

Practical applications

• Regulatory compliance: Screening textiles for azo-derived aromatic amines to meet chemical safety regulations and market requirements.
• Product safety testing: Routine lab testing of finished garments, home textiles, prints and coated materials.
• Supplier and quality control: Raw-material checks, incoming inspection and supplier audits to prevent non‑compliant dyes.
• Forensic and recall investigations: Identifying potential sources of restricted amines in consumer goods.

Who uses this standard

• Accredited textile testing laboratories and chemists
• Manufacturers, brands and retailers responsible for product compliance
• Regulatory bodies and market surveillance authorities
• Procurement and quality assurance teams in the textile supply chain

Related standards

• EN ISO 14362‑1:2017 supersedes EN 14362‑1:2012.
• ISO 24362 series (includes Part 3 for detection of azo colorants that may release 4‑aminoazobenzene).
• ISO 3696 (water for analytical use) as a normative reference.

Keywords: EN ISO 14362-1:2017, azo colorants, aromatic amines, textiles testing, disperse dyes, reductive cleavage, extraction, dyed printed coated textiles, fibre testing.