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Standard TNI CEN/TR 16364 1.10.2013 preview

TNI CEN/TR 16364 (755474)

Influence of materials on water intended for human consumption - Influence due to migration - Prediction of migration from organic materials using mathematical modelling



STANDARD published on 1.10.2013


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The information about the standard:

Designation standards: TNI CEN/TR 16364
Classification mark: 755474
Catalog number: 93923
Publication date standards: 1.10.2013
SKU: NS-549312
The number of pages: 36
Approximate weight : 108 g (0.24 lbs)
Country: Czech technical standard
Category: Technical standards TNI - Czech

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The category - similar standards:

Drinking water

Annotation of standard text TNI CEN/TR 16364 (755474):

Tato technická normalizační informace popisuje postup založený na difuzním modelu, který se používá pro hodnocení specifické migrace látek z organických materiálů, přicházejících do styku s pitnou vodou, do pitné vody. Jak je vysvětleno v tomto dokumentu, je matematické modelování snadno použitelné pro určité organické materiály. Modelování difuze je v podstatě použitelné také pro jiné organické materiály, ale praktické obtíže spojené se získáváním dat pro difuzní model mohou omezit nebo znemožnit jeho použití. Podle toho je potřeba vedle difuzního modelu brát v úvahu vědecké postupy hodnocení pro potřebné vstupní údaje. Tento přístup se obvykle používá pro organické látky, které jsou rozpustné v matrici materiálu. Pro látky aplikované zevně na výrobek z organického materiálu, např. pro antistatická činidla, maziva apod. se modelování difuze nepoužívá, stejně jako pro elektrolyty, soli, oxidy a kovy. Modelování difuze se používá pouze pro organické látky s (dobře) definovanou relativní molekulovou hmotností nebo pro směsi s definovaným rozsahem relativních molekulových hmotností

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