The product protocol has a single storage temperature, but the label shows a temperature range? Which is correct?

The storage conditions that a Biotium label recommends are deliberately conservative. Long term storage at low temperatures usually will increase the time that the product will remain within specification, unless specific instructions otherwise are provided (such as “do not refrigerate” or “do not freeze”).

Biotium labels and product information sheets may show a specific temperature for long term storage, or a temperature range that is adequate for long term storage. For all products, the implied range is as follows for the following storage conditions:

• Room Temperature
  For Biotium products where the label indicates room temperature or RT, this implies storage in ambient conditions between 20°C and 30°C.

• Refrigerator
  For Biotium products where the label indicates 4°C, this implies storage in a refrigerator that is between 2°C and 8°C.

• Freezer
  For Biotium products where the label indicates -20°C, this implies storage in a freezer that is between -35°C and -5°C.

• Ultra Low Temperature Freezer
  For Biotium products where the label indicates -70°C, this implies storage in an ultra low-temperature (ULT) freezer that is below -60°C.