The cord blood sample after processing need to undergo a slow freezing process at a controlled rate until it reaches -90'C before it is transferred to a vapour phase liquid nitrogen tank for long-term storage at -185 to -190'C.

Slow Freezing Process

| Controlled Rate Freezer | |
| Processing procedure | slow freezing by a rate of 1℃ to 2℃ per min.until -90℃ |
| Features |
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