Standard
Reference standard:JIS Z 8901
＊Material used：KANTO ( Japanese ) loam *Sintered at 800°C, 2hours.
＊Particle density：2.9～3.1g/cm3
＊Chemical composition
| Chemical composition | % ( mass ) |
| SiO2 | 34～40 |
| Fe2O3 | 17～23 |
| AI2O3 | 26～32 |
| CaO | 0～3 |
| MgO | 0～7 |
| TiO2 | 0～4 |
| Ignition Loss | 0～4 |
＊Particle size distribution
| Particle size µm |
Oversize(mass basis)% | ||
| Class 7 | Class 8 | Class 11 | |
| 1 | – | 65±5 | |
| 2 | – | 50±5 | |
| 4 | – | 22±3 | |
| 5 | 88±5 | 61±5 | – |
| 6 | – | 8±3 | |
| 8 | – | 3±3 | |
| 10 | 76±3 | 43±3 | – |
| 20 | 62±3 | 27±3 | – |
| 30 | 50±3 | 15±3 | – |
| 40 | 39±3 | 9±3 | – |
| 75 | 20 max. | 3 max. | |
Microscopic Photograph
Test Powders 1-Class7（KANTO(Japanese) loam ）
Test Powders 1-Class8（KANTO(Japanese) loam ）
Test Powders 1-Class11（KANTO(Japanese) loam ）
Price
Air-freight charge and handling charge are added to prices in the list. Invoice will be sent for inquiry with required quantity and destination of the cargo. Delivery of cargo shall be made after confirming your payment to our bank account or Credit cards indicated in the invoice.