Experimental Runs (Stopper A). Shaded Cells show 1–100% Leaking Vials (Leak)
| Storage Conditions | Copper Wire Diameter (μm) | Storage Time (week) | CO2 Headspace (number of leaking vials/total vials) | He Leak@ –60 °C (number of leaking vials/total vials) | He Leak@ –20 °C (number of leaking vials/total vials) | He Leak@ RT (number of leaking vials/total vials) |
|---|---|---|---|---|---|---|
| RT | No wire | 1 | 0/10 | 9/10 | 0/10 | 0/10 |
| 20 | 1 | 0/10 | 10/10 | 0/10 | 0/9 | |
| 60 | 1 | 3/10* | 10/10 | 10/10 | 10/10 | |
| Dry ice | No wire | 1 | 0/10 | 3/10 | 0/10 | 0/10 |
| 20 | 1 | 2/10 | 9/10 | 2/10 | 1/9 | |
| 60 | 1 | 10/10 | 10/10 | 10/10 | 10/10 |
↵* Vials stored in same room as dry ice samples; values measured are in the range of 0.07–0.10% (32).