1.1 Subject content This specification specifies the requirements, quality assurance regulations and delivery preparation for submarine periscopes. 1.2 Scope of application This specification applies to the design, manufacturing, inspection and acceptance of periscopes. 1.3 Classification mirrors can be divided into: a. Attack periscope (also called command periscope); b. Search periscope (also called multi-purpose periscope or air navigation periscope); c. Astronomical navigation periscope;
CB 995-1998 history
1998CB 995-1998 General specification for submarine periscope