Pycnometers, Borosilicate glass 3.3, calibrated ISO 3507. Individually calibrated to contain (In) to 0.001ml. Net volume capacity is engraved on the body. Each bottle is calibrated together with its stopper. In order to differentiate easily, both the body and the stopper have the same code numbers printed on them.
| Manufacturer | ISOLAB |
| Manufacturer P/n | 023.02.005 |
| Ext. Ø | Boro 3.3 |
| Colour handle | Yes |
| With collar | ISO 3507 |