BS ISO 8008:2005
Current
The latest, up-to-date edition.
Aluminium oxide primarily used for the production of aluminium. Determination of specific surface area by nitrogen adsorption
Hardcopy , PDF
English
23-01-2006
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1 Scope
2 Normative references
3 Principle
4 Reagents
5 Apparatus
6 Sampling and sample preparation
7 Procedure
8 Calculation and reporting of results
9 Precision
10 Quality control
11 Test report
Annex A (informative) Difference between single- and
multi-point-determined BET SSA
Annex B (informative) Results of test programme
Specifies an instrumental method for the determination of specific surface area of smelter-grade alumina by nitrogen adsorption by a single- or multi-point method.
| Committee |
W/-
|
| DevelopmentNote |
Supersedes BS 4140-23(1987) and 04/30118278 DC. (02/2006) Reviewed and confirmed by BSI, March 2015. (03/2015)
|
| DocumentType |
Standard
|
| Pages |
16
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
| Supersedes |
This International Standard specifies an instrumental method for the determination of specific surface area (SSA) of smelter-grade alumina (SGA) by nitrogen adsorption by a single- or multi-point method. A multi-point method is recommended due to the higher accuracy obtained; if a single-point method is used, a lower result will be obtained.
NOTE AnnexA provides an explanation of the difference between single- and multi-point determined BET SSA.
This International Standard is applicable to aluminas having a surface area between 50m2/g and 90m2/g.
| Standards | Relationship |
| ISO 8008:2005 | Identical |
| AS 2850-1986 | Chemical analysis - Interlaboratory test programs - For determining precision of analytical method(s) - Guide to the planning and conduct |
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