Item | Indicatoren op industrieel niveau | ||
Superieure I | Niveau I II | Secundaire III | |
Trisodium fosfaat (Na3PO4.12H2O)%≥ | 98.5 | 98.0 | 95.0 |
Methyl oranje alkaliteit% | 16.5-19.0 | 16.0-19.0 | 15.5-19.0 |
Water onoplosbare stof%≤ | 0.05 | 0.10 | 0.30 |
sulfaat%≤ | 0.50 | 0.50 | 0.80 |
chloride%≤ | 0.30 | 0.40 | 0.50 |
PH-waarde | 11.5-12.5 | ||
frees%≤ | 0.01 | 0.01 | 0.01 |
arsenicum%≤ | 0.005 | 0.05 | 0.05 |