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Different Types of Lab Freezers and Their Uses

The are many highly critical materials stored in lab freezers although they may seem like the freezers we have at home although slightly bigger perhaps. Temperature is important for these critical materials because any temperature change can diminish their effectiveness and this is why lab freezers need to have constant regulated temperatures. Some lab freezers are small and can fit underneath a counter, some are regularly-sized upright freezers and there are those that are extremely large similar to a walk-in freezer. The lowest temperature that a lab freezer should be kept is a slow as -85 degrees Celsius, way below the average house hold freezer temperature range which is between 0 and -10 degrees only.

There are many purposes for using these lab freezers. Some of the things you can find in a lab freezer includes serums and tissue samples, samples of DNA and RNA, protein extracts, and bacteria strains. Organs and blood are preserved in lab freezers in hospitals, while medicines are kept in lab freezers in pharmacies. To prevent degradation of specimens, they are kept in the lab freezer t constant temperature.

Like your home refrigerator unit, there are also lab freezers that are used for general purpose. And just like a home refrigerator, these lab freezers also have shelves inside and in the doors and in order to prevent the escape of the cold, there are rubber gaskets to protect it. But, these freezers are kept at very low temperatures usually between -15 to -25 degrees Celsius. These lab freezers have a locking device and in order not to keep opening the lab freezer to check its temperature, it comes with an LCD temperature display so that temperatures can be monitored constantly.

There are many different kinds of lab freezers. There are low temperature freezers that can store thousands of samples in many freezer racks and reach very low temperatures. There are freezers that does not use liquid nitrogen but can reach really low temperature levels of up to -150 degrees Celcius.

If you are storing flammable materials, a lab freezer is very important. Volatile materials can be stored in specially designed freezers. They meet OSHA standards but should till make certain to have alarms, monitors, and back up performance features if you are freezing critical biological or high-value life science materials.

Another type of freezer is the blood bank freezer that is used to store blood and plasma. You cannot use an ordinary refrigerator for this purpose because you cannot properly maintain the balance of temperature when the doors are opened. It is not difficult to maintain blood bank freezers since the shelf life of blood is very short and is important is saving lives.

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