GSO ISO 17234-2:2022

Leather — Chemical tests for the determination of certain azo colorants in dyed leathers — Part 2: Determination of 4-aminoazobenzene

GSO ISO 17234-2:2022 发布历史

GSO ISO 17234-2:2022由GSO 发布于 2022-05-12。

GSO ISO 17234-2:2022在国际标准分类中归属于: 59.140.30 皮革和裘皮。

GSO ISO 17234-2:2022 的最新版本是哪一版？

最新版本是 GSO ISO 17234-2:2022 。

GSO ISO 17234-2:2022的历代版本如下：

• 2022年 GSO ISO 17234-2:2022

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.

标准号

GSO ISO 17234-2:2022

发布

2022年

发布单位

GSO

当前最新

GSO ISO 17234-2:2022

 

 

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