Minimize contamination by eliminating the need for serial dilutions and extensive sample handling with Thermo Scientific™ COUNT-CAL™ Count Precision Size Standards, a cost-effective, convenient and easy to use product for validating liquid particle counters. Packaged in single-use bottles and intended to be sampled directly from the bottle, standards were developed for manufacturers of parenteral drugs and ophthalmic solutions seeking interim verification of USP 788 and 789 (Particulate Matter in Injections and Particulate Matter in Ophthalmic Solutions).
How should I store COUNT-CAL Count Precision Size Standards?
Unless otherwise stated, we recommend refrigerating COUNT-CAL Count Precision Size Standards at 2 to 8 degrees C when not in use. We do not recommenf freezing them. The bottle must be kept tightly sealed and stored upright.