Објављен
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.)
ОБЈАВЉЕН
ISO 18843:2015
90.93
Одлука о потврђивању стандарда
24. 10. 2022.