Standard
Reference standard:JIS Z 8901
＊Material used：Calcium- carbonate ( heavy )
＊Particle density：2.7～2.8g/cm3
＊Chemical composition
| Chemical composition | % ( mass ) |
| CaO | 54～56 |
| MgO | 0～3 |
| SiO2 | 0～4 |
| AI2O3 | 0～3 |
| Fe2O3 | 0～1 |
| Ignition Loss | 42～45 |
＊Particle size distribution
| Particle size µm |
Oversize(mass basis)% | |
| Class 16 | Class 17 | |
| 1 | – | 80±5 |
| 2 | 76±5 | 54±5 |
| 4 | – | 18±5 |
| 5 | 40±5 | – |
| 8 | – | 4±3 |
| 10 | 10±5 | – |
| 16 | – | 1 max. |
| 20 | 1 max. | |
Microscopic Photograph
Test Powders 1-Class16（Calcium-carbonate ( heavy )）（SEM）
Test Powders 1-Class17（Calcium-carbonate ( heavy )）（SEM）
Test Powders 1-Class17（Calcium-carbonate ( heavy )）（SEM）
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.
| Classification | Material used | Package | Price ( JPY ) |
| Class 16 | Calcium carbonate (heavy) | 1Kg 2Kg 10Kg |
7,800 12,700 58,000 |
| Class 17 | Calcium carbonate (heavy) | 1Kg 2Kg 10Kg |
8,500 14,500 62,800 |