The scope of this European Standard is to: - Provide a requirements document for CMB Manufacturers to produce systems for the Aerospace and Defence industry. - Identify the minimum performance requirements specific to CMB used on Aerospace and Defence vehicle parts accessed only during ground operations. - Identify existing standards applicable to CMB. - Provide a qualification standard for CMB which will use permanently-affixed installation on systems. - Provide some patterns of data. In addition to any relevant document from certification authorities, the following documents should be taken into account to define requirements concerning the technical specifications for CMB: - EUROCAE documents: ED-14, Environmental Conditions and Test Procedures for Airborne Equipment. - RTCA documents: DO-160, Environmental Conditions and Test Procedures for Airborne Equipment. - Military Standard: MIL-STD-810, Department of Defense Test Method Standard for Environmental Engineering Considerations and Laboratory Tests.