Historical
BS EN 14362-3:2012
Textiles. Methods for determination of certain aromatic amines derived from azo colorants. Detection of the use of certain azo colorants, which may release 4-aminoazobenzene (British Standard)
Azo colorants that are able to form 4-aminoazobenzene, generate under the conditions of EN 14362-1 themines aniline and 1,4-phenylenediamine. The presence of these 4-aminoazobenzene colorants cannot beeliably ascertained without additional information (e.g. the chemical structure of the colorant used) or without special procedure.his part of EN 14362 is supplementary to Part 1 and describes a special procedure to detect the use ofertain azo colorants in commodities, which may release 4-aminoazobenzene, accessible to reducing agent without extraction, particularly concerning textiles made of cellulose androtein fibres (e.g. cotton, viscose, wool, silk); accessible by extracting the fibres (e.g. polyester or imitation leather).or certain fibre blends both parts of this standard (without or with extraction) may need to be applied.he procedure detects as well 4-aminoazobenzene (Solvent Yellow 1) which is already available as freemine in commodities without reducing pre-treatment.he use of certain azo colorants, which may release by reductive cleavage of their azo group(s) one or moref the other aromatic amines listed in the Regulation (EC) No 1907/2006 of the European Parliament and ofhe Council on the Registration, Evaluation, Authorisation and Restriction of Chemicals (REACH) as regardsnnex XVII, except 4-aminoazobenzene, cannot be determined quantitatively with this method.
British Standards Institution [bsi]