How should I transport urine samples that require refrigeration?

Refrigerated specimens at 2-8°C should be packed by placing a prefrozen gel pack at the bottom of the box, covered with perforated sponge, followed by the sealed zip lock sample bag and another layer of perforated sponge. Another prefrozen gel pack is added before closing the thermocol lid and sealing the cardboard box (Page 19).

From the official DR Lal Pathlabs DR Lal Pathlabs Lpl G Dat 005 Reference Guide manual, page 19

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