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Stability Chambers are particularly created tools for evaluating goods and figuring out how long they’ll last, such as drugs, electrical parts, industrial materials, etc. They let you adjust variables like temperature and humidity to thoroughly examine a variety of circumstances. varied products require varied testing environments, yet it is logistically impractical to transfer to different locations for various climatic conditions. Stability chambers can help in this situation and make the job easier. Additionally, they are able to detect variations in product quality that can result from varying exposure to the environment.
The concept of a stability chamber is straightforward: by keeping the temperature consistent, you keep the relative humidity stable too. A stability chamber is designed to maintain a constant temperature, which will also stabilize the relative humidity value. The amount of water that air can hold is measured by its “relative humidity“. When the temperature increases outdoors, air can hold a greater amount of water causing a decrease in relative humidity. How the parameters are automatically and simultaneously updated depends on the relative humidity. The ICH guidelines, which state that changes in temperature and humidity in the stability chamber shouldn’t exceed 5% and 2-3 degrees, respectively, must be strictly adhered to.
The outside and inner bodies of the chamber are made of corrosion-resistant stainless steel, and the interior is lined with the suitable insulation. There are various shelves inside the chamber where items that can be removed simply can be kept. In the chamber, sensors are also put to measure the humidity and temperature. The humidity and temperature inside the chamber are consistently maintained because of the controlled airflow. It is advised to use horizontal laminar airflow to increase the constancy of the required conditions. With such a configuration, the shelves will continue to get a consistent flow of air even after being fully stocked with samples. The connected blowers keep the air moving properly. Data transmission and receiving are done via data loggers.
A controlled temperature and humidity environment is offered by stability chambers. For stability tests, for instance in pharmaceuticals or packaging, they are ideal. Testing in a controlled setting or storage are examples of additional applications.