This standard stipulates the technical conditions for the installation, debugging and testing of submarine periscopes and their devices. It also puts forward specific requirements for the hull structure and trough sight supporting equipment related to the installation of submarine periscopes. This standard applies to the installation and acceptance of submarine periscopes and their devices.
CB 1221-1993 history
1993CB 1221-1993 Technical conditions for the installation of submarine periscopes and their devices