Dustiness and deagglomeration testing: interlaboratory comparison of systems for nanoparticle powders

Détails

Ressource 1Télécharger: BIB_CF268F729869.P001.pdf (754.05 [Ko])
Etat: Public
Version: Final published version
ID Serval
serval:BIB_CF268F729869
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Dustiness and deagglomeration testing: interlaboratory comparison of systems for nanoparticle powders
Périodique
Aerosol Science and Technology
Auteur(s)
Ding Yaobo, Stahlmecke Burkhard, Jimenez Araceli Sanchez, Tuinman Ilse L., Kaminski Heinz, Kuhlbusch Thomas A. J., van Tongeren Martie, Riediker Michael
ISSN
0278-6826
Statut éditorial
Publié
Date de publication
2015
Peer-reviewed
Oui
Volume
49
Numéro
12
Pages
1222-1231
Langue
anglais
Résumé
Different types of aerosolization and deagglomeration testing systems exist for studying the properties of nanomaterial powders and their aerosols. However, results are dependent on the specific methods used. In order to have well-characterized aerosols, we require a better understanding of how system parameters and testing conditions influence the properties of the aerosols generated. In the present study, four experimental setups delivering different aerosolization energies were used to test the resultant aerosols of two distinct nanomaterials (hydrophobic and hydrophilic TiO2). The reproducibility of results within each system was good. However, the number concentrations and size distributions of the aerosols created varied across the four systems; for number concentrations, e.g., from 10(3) to 10(6) #/cm(3). Moreover, distinct differences were also observed between the two materials with different surface coatings. The article discusses how system characteristics and other pertinent conditions modify the test results. We propose using air velocity as a suitable proxy for estimating energy input levels in aerosolization systems. The information derived from this work will be especially useful for establishing standard operating procedures for testing nanopowders, as well as for estimating their release rates under different energy input conditions, which is relevant for occupational exposure.
Mots-clé
Nanoparticles , Particle Size , Aerosols , Powders ,
Web of science
Open Access
Oui
Création de la notice
21/01/2016 14:23
Dernière modification de la notice
20/08/2019 16:49
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