This standard specifies the technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of submarine periscope outer mirror tubes. This standard is applicable to the manufacture and acceptance of submarine periscope outer mirror tubes. The manufacture and acceptance of other types of periscope outer mirror tubes can also be used as a reference.
CB 1210-1990 history
2011CB 1210-2011 Design and manufacture technical requirements for Out tube of Submarine Periscope
1990CB 1210-1990 General specification for submarine periscope outer mirror tube