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EN ISO 17234-2:2011

Current

Current

The latest, up-to-date edition.

Leather - Chemical tests for the determination of certain azo colorants in dyed leathers - Part 2: Determination of 4-aminoazobenzene (ISO 17234-2:2011)

Published date

03-15-2011

Foreword
1 Scope
2 Normative references
3 General
4 Principle
5 Safety precautions
6 Apparatus
7 Reagents
8 Sampling
9 Procedure
10 Evaluation
11 Test report
Annex A (informative) - Chromatographic analyses
Annex B (informative) - Reliability of the method
Annex C (informative) - Assessment guide - Interpretation
        of analytical results
Bibliography

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.

Committee
CEN/TC 289
DocumentType
Standard
PublisherName
Comite Europeen de Normalisation
Status
Current

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UNE-EN ISO 16373-3:2015 Textiles - Dyestuffs - Part 3: Method for determination of certain carcinogenic dyestuffs (method using triethylamine/methanol) (ISO 16373-3:2014)
I.S. EN ISO 16373-3:2014 TEXTILES - DYESTUFFS - PART 3: METHOD FOR DETERMINATION OF CERTAIN CARCINOGENIC DYESTUFFS (METHOD USING TRIETHYLAMINE/METHANOL) (ISO 16373-3:2014)
ISO 16373-3:2014 Textiles Dyestuffs Part 3: Method for determination of certain carcinogenic dyestuffs (method using triethylamine/methanol)
EN ISO 16373-3:2014 Textiles - Dyestuffs - Part 3: Method for determination of certain carcinogenic dyestuffs (method using triethylamine/methanol) (ISO 16373-3:2014)
PD CEN/TR 16417:2016 Footwear. Footwear industry guideline for substances of very high concern (Annex XIV of REACH)
UNI EN ISO 16373-3 : 2014 TEXTILES - DYESTUFFS - PART 3: METHOD FOR DETERMINATION OF CERTAIN CARCINOGENIC DYESTUFFS (METHOD USING TRIETHYLAMINE/METHANOL)

ISO 2418:2017 Leather — Chemical, physical and mechanical and fastness tests — Sampling location
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