| Isalathiso | Iyunithi | Idatha |
| I-Al2O3 | % | ≥65 |
| I-Fe2O3 | % | ≤1.6 |
| Umthamo wembobo | % | ≤24 |
| Amandla oxinzelelo | kg/cm2 | ≥ 900 |
| Ukungaguquguquki | ℃ | ≥1800 |
| Unizi lolwapho kuyiwa khona | kg/m3 | ≥1386 |
| Ubunzima obuthile | kg/m3 | ≥2350 |
| Ukungaguquguquki kwe-℃ phantsi komthwalo we-2kg/cm2 | ℃ | ≥1500 |
| I-LOI | % | ≤0.1 |