Aluminium oxide primarily used for the production of aluminium — Determination of loss of mass at 300 degrees C and 1 000 degrees C

Available format(s)

Hardcopy , PDF , PDF 3 Users , PDF 5 Users , PDF 9 Users

Language(s)

English

Published date

10-12-2004

Publisher

International Organization for Standardization

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	ISO 803:1976 ISO 806:1976

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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