Table 4.

Dry-ice sublimation performance parameters.

Package	Test 1		Test 2
	Generic insulated box		Pharmaceutical box
Dry ice	Baseline	Refrigerated	Baseline	Refrigerated
Surrounding temperature	21.1 °C	−30 °C	21.1 °C	−35 °C
Starting weight	21.66 kg	22.57 g	22.23 kg	22.23 kg
Lifetime	120 h	237 h	123 h	306 h
Sublimation rate	0.181 kg/h	0.095 kg /h	0.181 kg /h	0.073 /h