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Specimen group numbers based on tested conditions
| Group number | Description | Solution | Duration |
|---|---|---|---|
| Group 1 | Low temperature cycles (5 °C to 20 °C) | 20% CaCl2 | Up to 150 cycles/600 days |
| Group 2 | Constant temperature (5 °C) | 20% CaCl2 | Up to 600 days |
| Group 3 | Constant temperature (5 °C) | 20% MgCl2 | Up to 600 days |
