90.93 Standard confirmed Nov 15, 2022
ISO
ISO/TC 226 Materials for the production of primary aluminium
International Standard
71.100.10 Materials for aluminium production
Specifies two methods for industrial calcined products. The first, using carbon tetrachloride vapour, is applicable if the density of the material exceeds 3.75 g/ml; the second, using water vapour, is applicable if the density of the material is lower than 3.75 g/ml. The adsorptive power is evaluated by exposure of a previously dried sample to an atmosphere saturated with carbon tetrachloride or water vapour at a conventional temperature. Measurement of the quantity of the corresponding vapour adsorbed after a conventional time. Has also been approved by the IUPAC.
PUBLISHED
ISO 2961:1974
90.93
Standard confirmed
Nov 15, 2022