Nom | Support | Langue | Disponibilité | Date d'édition | Prix | ||
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PDF |
Anglais |
Active |
28/03/2023 |
121,00 € |
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Détails
This document specifies the determination of the overall specific external and internal surface area of either disperse (e.g. nano-powders) or porous, solids by measuring the amount of physically adsorbed gas according to the method of Brunauer, Emmett and Teller method,[1] based on the 2015 International Union for Pure and Applied Chemistry (IUPAC) recommendations[3].
NOTE For solids exhibiting a chemically heterogeneous surface, for example, metal-carrying catalyst, the BET method gives the overall surface area, whereas the metallic portion of the surface area can be measured by chemisorption methods.
Directives : Not yet available in DB
Informations supplémentaires
Auteur | Bureau de Normalisation Belge (NBN) |
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Edité par | NBN |
Type de document | Norme |
ICS | 19.120 : Analyse dimensionnelle des particules. tamisage
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Historique | No |
Mot-clé | ISO 9277, ISO 9277:2023 |