käedkastid

Käedkastid, often translated as "handboxes" or "glove boxes," are enclosed, environmentally controlled chambers used to handle sensitive materials. These systems create a barrier between the user and the contents, preventing contamination of the material by the external atmosphere or the user from hazardous substances within the box. They are typically constructed from transparent materials like acrylic or glass, allowing for visual observation of the work inside.

The primary function of a käedkast is to maintain a specific atmosphere. This can range from a vacuum to a controlled inert gas environment, such as argon or nitrogen. This is crucial for working with air-sensitive chemicals, biological samples that require sterile conditions, or materials that are toxic or pyrophoric. The atmosphere inside the käedkast is typically circulated and purified through a filtration system to maintain its integrity.

Access to the interior of a käedkast is usually achieved through a pair of sealed gloves, which are attached to the walls of the chamber. These gloves allow the user to manipulate objects and perform tasks within the controlled environment without compromising the internal atmosphere or their own safety. Airlocks or transfer chambers are often incorporated into käedkast designs to allow for the safe introduction and removal of materials without disrupting the main working environment.

Käedkastid find widespread application in various scientific and industrial fields, including chemistry, pharmaceuticals, semiconductor manufacturing, and nuclear material handling. Their ability to provide a safe and controlled working space makes them indispensable for delicate manipulations and hazardous material management.