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Ultimate biodegradation of commercial linear alkylbenzene sulphonates (LASunder ISO 14593 headspace CO2 test : compliance with EU detergent regulation 648/2004 in TENSIDE, SURFACTANTS, DETERGENTS, Vol. 48, N° 5 (09-10/2011)

[article]
inTENSIDE, SURFACTANTS, DETERGENTS > Vol. 48, N° 5 (09-10/2011) . - p. 390-394

Titre :	Ultimate biodegradation of commercial linear alkylbenzene sulphonates (LASunder ISO 14593 headspace CO2 test : compliance with EU detergent regulation 648/2004
Type de document :	texte imprimé
Année de publication :	2011
Article en page(s) :	p. 390-394
Note générale :	Bibliogr.
Langues :	Anglais (eng)
Catégories :	Chimie industrielle -- Législation -- Pays de l'Union européenne Sulfonates d'alkylbenzène Surfactants -- Biodégradation Surfactants -- Industrie et commerce -- Aspect de l'environnement
Tags :	'Alkylbenzène sulfonates linéaire' 'Biodégradation ultime' 'ISO 14593' 'Régulation détergent EU'
Index. décimale :	668.1 Agents tensioactifs : savons, détergents
Résumé :	The EU Detergent Regulation 648/2004 introduces a new pass-fail criterion for the biodegradability of all surfactant classes used in household detergents. The new criterion is based on the determination of the mineralisation of the surfactant, ultimate biodegradability. There are a series of official biodegradation tests allowed in the new Regulation as well as a reference test based on the ISO 14593 method. There are few data in the literature about the biodegradation results of common surfactants using the above methodology and consequently the aim of our study was to apply it to a variety of commercial LAS products. Both the influence of the counter-ion and initial concentration of LAS have been assessed. The results confirm that LAS complies with the ultimate biodegradation requirements fixed on the new EU Detergent Regulation.
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