Aluminium oxide primarily used for the production of aluminium. Determination of specific surface area by nitrogen adsorption Ingestion-build-84997 resistance to weathering

resistance to weathering

— information in case of fire or submersion

BS 4439 covers marking and identification requirements

not numeric

cooling towers

Aluminium oxide primarily used for the production of aluminium. Determination of specific surface area by nitrogen adsorption Ingestion-build-84997 resistance to weathering1 Scope 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 Annex A provides an explanation of the difference between single and multi point determined BET