Technical rule [CURRENT]
DIN CEN ISO/TS 16179:2012-12
DIN SPEC 91179:2012-12
Footwear - Critical substances potentially present in footwear and footwear components - Determination of organotin compounds in footwear materials (ISO/TS 16179:2012); German version CEN ISO/TS 16179:2012
- German title
- Schuhe - Möglicherweise in Schuhen und Schuhbestandteilen vorhandene kritische Substanzen - Bestimmung zinnorganischer Verbindungen in Schuhwerkstoffen (ISO/TS 16179:2012); Deutsche Fassung CEN ISO/TS 16179:2012
- Publication date
- 2012-12
- Original language
- German
- Pages
- 16
- Procedure
- Pre-Standard
- Publication date
- 2012-12
- Original language
- German
- Pages
- 16
- Procedure
- Pre-Standard
- DOI
- https://dx.doi.org/10.31030/1741777
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This Technical Specification specifies a test method for determining the presence of organotin compounds. This test method is applicable to all types of footwear materials. The organotin substances are extracted from the footwear material with a methanol-ethanol mixture, in a medium-strength acidic condition, using tropolone as a complexant agent. The polar and high-boiling organotin is then converted to the corresponding volatile tetra-alkyl derivative, by reaction with sodium tetraethylborate. Finally, it is detected by a gas chromatograph fitted with a mass selective detector (GC-MS). The test method is intended to be used by footwear manufacturers, footwear retailers, supervising authorities and independent test laboratories. The committee responsible for this Technical Specification is NA 062-04-52 AA "Schuhe" ("Footwear") at DIN.