90.93 Standard confirmed Oct 24, 2022
ISO
ISO/TC 226 Materials for the production of primary aluminium
International Standard
71.100.10 Materials for aluminium production
Published
ISO 18843:2015 sets out a method for determining the amount of time taken for a given quantity of smelter-grade alumina to flow by gravity through a precisely constructed standard funnel.
NOTE Variations in the apparatus and other test variables can create significant inter-laboratory differences in results. (See Table A.1.)
PUBLISHED
ISO 18843:2015
90.93
Standard confirmed
Oct 24, 2022