Table 1.

Manufacturer Claims for Stability

Method	Manufacturer claim
Siemens DCA 2000+	2 weeks at −70 to 5°C, 1 week at room temperature
Tosoh G7	1 week at 4–8°C, 8 h at room temperature
Tosoh G8	2 weeks at 4–8°C, 24 h at room temperature
Trinity Biotech ultra2	At least 7 days at 4°C, longer at −70°C
Bio-Rad Variant II NU	1 week at 2–8°C