Europe Updates Standard for Identifying Aromatic Amines Derived from Azo Colorants

The CEN has published a new version of the method standards for determining the presences of restricted aromatic amines derived from azo colorants in textiles. The 2017 versions supersede the 2012 versions. End Quote

(1888PressRelease) May 27, 2017 - The European Committee for Standardization (CEN) has published updates for the methods used to determine the presence of restricted aromatic amines derived from azo colorants in textiles. CEN issued the updates in February 2017, superseding the 2012 versions of the standards.

The two updated standards are:
• EN ISO 14362-1:2017 Textiles - Methods for determination of certain aromatic amines derived from azo colorants - Part 1: Detection of the use of certain azo colorants accessible with and without extracting the fibers (ISO 14362-1:2017)
• EN ISO 14362-3:2017 Textiles - Methods for determination of certain aromatic amines derived from azo colorants - Part 3: Detection of the use of certain azo colorants, which may release 4-aminoazobenzene (ISO 14362-3:2017)

The amendments provide improved analytical procedures and new guidance on interpreting results.
EN ISO 14362-1:2017 defines a method for detecting the presence of certain amines despite not being used during manufacturing or in the treatment of some products made of textile fibers and that are accessible from azo colorants by reducing agent with or without extraction. It is relevant to all colored textiles - dyed, printed or coated. White and uncolored fibers, threads or fabric are considered free from azo colorants and analysis is not required, but it is considered 'pale' printed material may still contain azo colorants.

• Azo colorants accessible to reducing agent without extraction are those used to:
o Color with pigments
o Dye cellulose fibers (e.g. cotton, viscose)
o Dye protein fibers (e.g. wool, silk)
o Dye synthetic fibers (e.g. polyamide, acrylic)
• Azo colorants accessible with extraction are those used to dye man-made fibers with disperse dyes (e.g. polyester, polyamide, acetate, triacetate, acrylic and chlorofiber)

The use of azo colorants is prohibited by entry 43 of Annex XVII in REACH Regulation (EC) No. 1907/2006. The restriction encompasses both textile and leather articles that may come into direct and prolonged contact with the human skin or the oral cavity. The regulations list 22 aromatic amines, obtained by reductive cleavage of one or more azo colorants. They may not be used in concentrations greater than 30 mg/kg as determined by gas chromatography.

For more details on the changes to EN ISO 14362-1:2017, view SGS Safeguard 082/17.

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SGS SafeGuardS keep you up to date with the latest news and developments in the consumer goods industry. Read the full New European Standard for Aromatic Amines Derived from Azo Colorants Released SafeGuardS. (www.sgs.com/en/news/2017/05/safeguards-08217-new-european-standard-for-aromatic-amines-derived-from-azo-colorants-released)

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Email: cts.media ( @ ) sgs dot com
Website: www.sgs.com/softlines

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