Standard
Reference standard:JIS Z 8901
＊Material used：Quartz sand
＊Particle density：2.6～2.7g/cm3
＊Chemical composition
| Chemical composition | % ( mass ) |
| SiO2 | 95 min. |
| Fe2O3 | 5 max. |
| AI2O3 | |
| TiO2 | |
| MgO | |
| Ignition Loss |
＊Particle size distribution
| Particle size µm |
Oversize(mass basis)% | ||
| Class 1 | Class 2 | Class 3 | |
| 5 | – | 88±5 | 61±5 |
| 10 | – | 76±3 | 43±3 |
| 20 | – | 62±3 | 27±3 |
| 30 | – | 50±3 | 15±3 |
| 40 | – | 39±3 | 9±3 |
| 45 | 99 min. | – | – |
| 75 | 90±3 | 20 max. | 3 max. |
| 106 | 80±3 | ||
| 150 | 65±3 | ||
| 212 | 45±3 | ||
| 300 | 1 max. | ||
Microscopic Photograph
Test Powders 1-Class1（Quartz sand）（SEM）
Test Powders 1-Class2（Quartz sand）（SEM）
Test Powders 1-Class3（Quartz sand）（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 1 | Quartz sand | 1Kg | 17,200 |
| Class 2 | Quartz sand | 1Kg 2Kg 10Kg |
12,100 21,000 93,500 |
| Class 3 | Quartz sand | 1Kg 2Kg 10Kg |
13,900 23,000 101,400 |