EN ISO 17234-2:2011
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)
15-03-2011
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
|
| Standards | Relationship |
| PN EN ISO 17234-2 : 2011 | Identical |
| NBN EN ISO 17234-2 : 2011 | Identical |
| SS-EN ISO 17234-2 :2011 | Identical |
| NF EN ISO 17234-2 : 2011 | Identical |
| ISO 17234-2:2011 | Identical |
| BS EN ISO 17234-2:2011 | Identical |
| NS EN ISO 17234-2 : 2011 | Identical |
| NEN EN ISO 17234-2 : 2011 | Identical |
| DIN EN ISO 17234-2:2011-06 | Identical |
| I.S. EN ISO 17234-2:2011 | Identical |
| UNE-EN ISO 17234-2:2011 | Identical |
| BS EN ISO 16373-3:2014 | Textiles. Dyestuffs Method for determination of certain carcinogenic dyestuffs (method using triethylamine/methanol) |
| CEN/TR 16417:2016 | Footwear - Footwear industry guideline for substances of very high concern (Annex XIV of REACH) |
| S.R. CEN/TR 16417:2016 | FOOTWEAR - FOOTWEAR INDUSTRY GUIDELINE FOR SUBSTANCES OF VERY HIGH CONCERN (ANNEX 14 OF REACH) |
| 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) |
| 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) |
| ISO 2418:2017 | Leather — Chemical, physical and mechanical and fastness tests — Sampling location |
| ISO 4044:2017 | Leather — Chemical tests — Preparation of chemical test samples |