GOST (State Standard) 22551-77
Chemical Composition and Particle Size Distribution
Characteristics | Gost (State Standart) 22551-77 | Standard |
SiO2, min | 98.5 | >99.0 |
Fe2O3, max | 0.05 | 0.047 |
Al2O3, max | 0,6 | 0.4 - 0.5 |
Moisture, max | 0.5 | 0.03 |
Sieve residue # 08, max | 0.5 | 0.005 |
Sieve residue # 01, max | 5.0 | 0.001 |
Physical Properties
- Refractoriness:
- 1 645 ÷ 1 770 °C
- Combustibility:
- non-combustible
- Solubility in water:
- insoluble
- Hardness:
- 7
Every single batch of silica sand is documented by a product passport specifying actual controlled parameters.
For detailed information about products, costs, and terms of supply do not hesitate to contact Sales Department.