HS 2530.90Industrial minerals
Natural Pozzolan
- Spec
- ASTM C618 Class N
- Packing
- Bulk vessel · Big bags
- Use
- Blended cement, concrete
Washed and processed kaolin for ceramics, paper and filler applications.
Kaolin is a white clay mineral (kaolinite) valued for its brightness, fine particle size and chemical inertness.
Grades are selected by brightness, alumina content and particle size for ceramics, paper coating and filler applications.
| Parameter | Unit | Limit / requirement | HPG typical | Test method |
|---|---|---|---|---|
| Al2O3 | % | grade-specific | [tbc] | XRF |
| Fe2O3 | % | grade-specific | [tbc] | XRF |
| TiO2 | % | grade-specific | [tbc] | XRF |
| ISO brightness | % | grade-specific | [tbc] | ISO 2470 |
| Particles < 2 µm | % | grade-specific | [tbc] | Sedimentation |
| Moisture | % | grade-specific | [tbc] | Gravimetric |
Summary for orientation only. The latest edition of the referenced standard and the specification agreed in the SPA govern.
Every cargo is sampled and tested by an independent inspection company (SGS, Intertek or equivalent) at the port of loading. The buyer receives the following documents: