Symbole | Plage du grain | Composition chimique (%) | Densité réelle | Forme du grain | |
Al2O3 | Na2O | ||||
WA | F12-80 | ≥99.70 | <=0.2 | ≥3.90 | Volume égal |
F90-150 | ≥99.70 | <=0.2 | |||
F180-220 | ≥99.50 | <=0.2 | |||
F230-400 | ≥99.50 | <=0.25 | |||
F500-1200 | ≥99.0 | <=0.25 |