Technical Index
Executive standard GB7744-2008
Item |
Index | ||||||
| Type I | Type II | ||||||
| HF-I-40 | HF-I-55 | HF-I-70 | HF-II-30 | HF-II-40 | HF-II-50 | HF-II-55 | |
| Hydrofluoric acid, % | 40.0 | 55.0 | 70.0 | 30.0 | 40.0 | 50.0 | 55.0 |
| Fluorosilicic acid, % | 0.05 | 2.5 | 5.0 | 8.0 | 10.0 | ||
| Sulfuric acid, % | 0.05 | 0.08 | 0.08 | 1.0 | 1.0 | 2.0 | 2.0 |
| Residue on ignition, % | 0.05 | - | |||||