Черный пигмент S722
Certificate of quality
| ITEMS | STANDARD | TEST RESULT |
| Fe2O3 % | ≥92 | 92.0 |
| MATTER VOLATILE AT 105℃ % | ≤1.0 | 0.76 |
| OIL ABSORPTION % | 15-25 | 22.8 |
| PH VALUE | 4-8 | 5.7 |
| RESIDUE SIFTING % | ≤0.4 | 0.25 |
| SOLUBLE MATTER IN WATER % | ≤0.5 | 0.35 |
| STRENGTH % | 95-105 | 100.3 |