How many freeze-thaw cycles can the Internal Control supplied with Certal Residual DNA Detection Kits tolerate?
FAQ ID -2975

The Internal Control supplied with Certal Residual DNA Detection Kits can be freeze-thawed up to 6 times without a decrease in performance. However, great care should be taken to avoid inadvertently introducing RNases or DNases into the Internal Control template solutions. In general, in order to avoid repeated freeze-thaw cycles, we recommend preparing aliquots of the Internal Control template.

Note:  The Internal Control supplied with Certal Residual DNA Detection Kits cannot be ordered separately