Résumé
PrévisualiserThis 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.
-
État actuel: PubliéeDate de publication: 2022-11
-
Edition: 3
-
- ICS :
- 19.120 Analyse dimensionnelle des particules. Tamisage
Acheter cette norme
fr
Format | Langue | |
---|---|---|
std 1 124 | PDF + ePub | |
std 2 124 | Papier |
- CHF124
Cycle de vie
-
Précédemment
AnnuléeISO 9277:2010
-
Actuellement
Vous avez une question?
Consulter notre FAQ
Service à la clientèle
+41 22 749 08 88
Horaires d’ouverture:
De lundi à vendredi - 09:00-12:00, 14:00-17:00 (UTC+1)