ISO 9277:2022
Current
The latest, up-to-date edition.
Determination of the specific surface area of solids by gas adsorption — BET method
Hardcopy , PDF , PDF 3 Users , PDF 5 Users , PDF 9 Users
English
08-11-2022
Important note : Users cannot be edited or removed once added to your Multi user PDF.
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.
| DocumentType |
Standard
|
| Pages |
22
|
| PublisherName |
International Organization for Standardization
|
| Status |
Current
|
| Supersedes |
| Standards | Relationship |
| DS/ISO 9277:2022 | Identical |
Access your standards online with a subscription
Features
-
Simple online access to standards, technical information and regulations.
-
Critical updates of standards and customisable alerts and notifications.
-
Multi-user online standards collection: secure, flexible and cost effective.