Medical grey rubber stoppers are commonly made from synthetic rubber materials such as chlorobutyl rubber and bromobutyl rubber. These materials are often preferred for their chemical stability, low gas permeability, and ability to withstand sterilization methods such as autoclaving.
Chlorobutyl rubber is a copolymer of isobutylene and chloroprene, while bromobutyl rubber is a copolymer of isobutylene and brominated isobutylene. Both materials are known for their low levels of extractables and leachables, which makes them safe for medical use.
In addition, these rubber materials are often tested and certified by regulatory bodies such as the US Food and Drug Administration (FDA) to ensure they meet strict safety and quality standards for use in medical devices.
It's important to note that while the materials used in medical grey rubber stoppers are generally considered safe, it's still crucial to follow proper handling and sterilization procedures to ensure their safety and effectiveness in medical applications.
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