According to the catalogue, cold life is measured by stabilising the empty container at +43 °C and loading it with frozen ice packs. The clock starts when the lid is closed and stops when the warmest point of the vaccine compartment first reaches +10 °C. Ambient is held at a constant +43 °C and the lid is not opened; lid openings shorten cold life.
| Model | Volume | Cold life |
|---|---|---|
| RCW8, short range | 6 L | 57.9 hours |
| ACB-264SL, long range | 6 L | 132 hours 18 minutes |
| BK CB 12 CF, long range | 12 L | 156 hours |
| AICB-503 L, long range | 22.5 L | 128.16 hours |
The table shows that hours cannot be read off from volume: at the same 6 litres two boxes differ by more than a factor of two, and the 12-litre box outlasts the 22.5-litre one. Put the same three lines in your specification: test temperature, time without opening, internal temperature limit. For food, +43 °C is not mandatory; choose a temperature that fits your route and keep it the same across every quotation.
A duration claim that leaves out these details stays out of the comparison; ask Aris Makina for a thermal analysis, and we take the request to GEBHARDT.
