These 7-315 series are crucibles with lids that are used with chemical compounds that may be heated in high temperatures.
| Order# | Description | Dimensions (L x W x H) |
| 7-315-1 | Crucible w/Lid, 15mL | 43mm x 19mm x 23mm |
| 7-315-2 | Crucible w/Lid, 30mL | 51mm x 25mm x 30mm |
| 7-315-3 | Crucible w/Lid, 50mL | 59mm x 28mm x 38mm |
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