DIN EN 14362-1 (accredited)

Our accredited laboratory carries out testing in accordance with DIN EN 14362-1 (Textiles – Methods for the determination of certain aromatic amines derived from azo colorants – Part 1: Detection of the use of certain azo colorants) professionally and under controlled conditions.
This standard defines an analytical procedure used to assess whether materials contain azo dyes that, under reductive conditions, can release aromatic amines classified as hazardous to health / carcinogenic.

As part of the test, the samples are first subjected to a reductive cleavage of the azo groups. During this process, aromatic amines may be released, which are then qualitatively and quantitatively determined using suitable chromatographic techniques.

DIN EN 14362-1 covers the detection of the following aromatic amines, provided they can be released from azo dyes:
4-aminobiphenyl, benzidine, 4-chloro-o-toluidine, 2-naphthylamine, o-aminoazotoluene, 5-nitro-o-toluidine, 4-chloroaniline, 4-methoxy-m-phenylenediamine, 4,4′-methylenedianiline, 3,3′-dichlorobenzidine, 3,3′-dimethoxybenzidine, 3,3′-dimethylbenzidine, 4,4′-methylenedi-o-toluidine, 6-methoxy-m-toluidine, 4,4′-methylene-bis-(2-chloroaniline), 4,4′-oxydianiline, 4,4′-thiodianiline, o-toluidine, 4-methyl-m-phenylenediamine, 2,4,5-trimethylaniline, o-anisidine, and 4-aminoazobenzene.

Evaluation is performed in the testing laboratory based on the limit values specified in the standard, with even low concentrations of these amines considered critical. The test results provide a reliable assessment of whether the tested material (typically textiles) complies with applicable legal requirements and product-specific specifications.