ISO 806:2004
Current
The latest, up-to-date edition.
Aluminium oxide primarily used for the production of aluminium — Determination of loss of mass at 300 degrees C and 1 000 degrees C
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English
10-12-2004
ISO 806:2004 specifies a method for the determination of loss of mass on heating of aluminium oxide at 300 °C and further loss of mass on ignition at 1 000 °C. By industry convention, these mass losses are often referred to as "moisture (MOI)" and "loss on ignition (LOI)" respectively.
This method is suitable for calcined alumina in the range 0,2 % to 5 % loss of mass at 300 °C and 0,1 % to 2 % loss of mass at 1 000 °C.
This method provides for samples to be treated on an "as-received" basis for determination of actual MOI and LOI in alumina samples. To improve precision of analysis in cases where "as-received" results are not required, samples can be "air-equilibrated" prior to analysis. "Air-equilibration" can greatly affect MOI results and significantly alter LOI results. The "air-equilibration" procedure and its effects are discussed.
Instrumental methods are also discussed.
Committee |
ISO/TC 226
|
DevelopmentNote |
Supersedes ISO/DIS 806 and ISO 803 (10/2004)
|
DocumentType |
Standard
|
Pages |
8
|
PublisherName |
International Organization for Standardization
|
Status |
Current
|
Supersedes |
Standards | Relationship |
BS ISO 806:2004 | Identical |
NEN ISO 806 : 2004 | Identical |
BS 4140-3:1986 | Identical |
NBN T 03 405 : 1983 | Identical |
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