Standard

NS-EN ISO 17234-2:2011

Jun 2011 Published

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Abstract

ISO 17234-2:2011 is supplementary to ISO 17234-1 and describes a special procedure to detect the use of certain azo colorants in commodities, which can release 4-aminoazobenzene. The procedure also detects 4-aminoazobenzene (Solvent Yellow 1) which is already available as free amine in commodities without reducing pretreatment.Azo colorants that are able to form 4-aminoazobenzene generate, under the conditions of ISO 17234‑1, 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.

Document information

Standard from SN
Published: 1 June 2011
Edition: 1
Version: 1
Document type: NAT
ISBN:

ICS 59.140.30
National Committee CEN/TC 289

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Adopted from: EN ISO 17234-2:2011 , 0

NS-EN ISO 17234-2:2011

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Abstract

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