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ČSN EN ISO 14362-3 (800874)
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
Translate name
STANDARD published on 1.8.2017
The information about the standard:
Designation standards: ČSN EN ISO 14362-3
Classification mark: 800874
Catalog number: 502448
Publication date standards: 1.8.2017
SKU: NS-689168
The number of pages: 28
Approximate weight : 84 g (0.19 lbs)
Country: Czech technical standard
Category: Technical standards ČSN
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Annotation of standard text ČSN EN ISO 14362-3 (800874):
colorants that are able to form 4-aminoazobenzene, generate under the conditions of ISO 14362 1, the amines aniline and 1,4-phenylenediamine. The presence of these 4 aminoazobenzene colorants cannot be reliably ascertained without additional information (e.g. the chemical structure of the colorant used) or without a special procedure. This document is supplementary to ISO 14362-1 and describes a special procedure to detect the use, in commodities, of certain azo colorants, which may release 4-aminoazobenzene, and that are - accessible to reducing agent without extraction, particularly concerning textiles made of cellulose and protein fibres (e.g. cotton, viscose, wool, silk), and - accessible by extracting the fibres (e.g. polyester or imitation leather). For certain fibre blends, in 9.3 and 9.4 (with and without extraction) may need to be applied. The procedure also detects 4-aminoazobenzene (Solvent Yellow 1), which is already available as free amine in commodities without reducing pre-treatment. The use of certain azo colorants, which may release, by reductive cleavage of their azo group(s), one or more of the other aromatic amines listed in the Regulation (EC) No 1907/2006 of the European Parliament and of the Council on the Registration, Evaluation, Authorization and Restriction of Chemicals (REACH) as regards Annex XVII, except 4-aminoazobenzene, cannot be determined quantitatively with this method
Preview of the standard ČSN EN ISO 14362-3 (800874)
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