The CAS number refers to the registration number of a chemical substance and is an internationally accepted identification number for chemical substances. BE, as part of the CAS number, is the abbreviation for the element Beryllium. Beryllium is a rare metallic element with many special physical and chemical properties and is commonly used in the nuclear industry, satellite manufacturing and aerospace fields.
BE's CAS number also has another meaning, namely Breathing Equipment, which means breathing equipment. In the process of work or life, there are some scenarios where the respiratory system needs to be protected. For example, when working in an environment with toxic gases or dust, BE equipment needs to be worn for protection. BE equipment usually includes breathing masks, gas cylinders, air filtering devices and other components.
In addition to the two common meanings mentioned above, BE has many other uses. In the medical field, medical devices with BE as CAS number are often used for visual inspection of specific parts of the human body, such as biliary catheters and gastroscopy. In addition, in research in other fields, BE can also be used to measure the magnetic properties of materials, detect the Be element content in nuclear reactor fuel rods, etc.