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ISO 806:2004 Aluminium oxide primarily used for the production of aluminium - Determination of loss of mass at 300 degrees C and 1 000 degrees C
standard by International Organization for Standardization, 10/01/2004
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Full Description
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.