Verzending 24–48 u • Levering in de hele EU • Veilige chemieverpakking
Prevents splashing when filling liquid nitrogen into standard 80 ml grinding beaker.
| Designation | Funnel |
Designation of degree of hardness of minerals, metals and other products at different hardness stages. Each stage is marked by a reference mineral.
| 1 Mohs | talc | 6 Mohs | feldspar |
| 2 Mohs | gypsum | 7 Mohs | quartz |
| 3 Mohs | calcite | 8 Mohs | topaz |
| 4 Mohs | fluorspar | 9 Mohs | corundum |
| 5 Mohs | apatite | 10 Mohs | diamond |




Verzending 24–48 u • Levering in de hele EU • Veilige chemieverpakking
