The Laboratory  shall:  - Ensure appropriate  electrical service  (for example,  by provision of an alternative power supply such as an UPS system and/or power generators)  and environmental conditions (space, temperature, humidity, as applicable) for all Laboratory  instrumentation and equ ipment critical to Laboratory  operations , such that service is not likely to be interrupted ; - Have policies in place to ensure the integrit y of refrigerated and/or frozen stored Samples  in the event of an electrical  or freezer/ refrigerator  equipment  failure.