CB 1234-1993
Test method for submarine air navigation periscope head spherical mask device (English Version)

Standard No.

CB 1234-1993

Language

Chinese, Available in English version

Release Date

1993

Published By

Professional Standard-Ships

Latest

CB 1234-1993

Scope

This standard specifies the sealing and external pressure test methods for the spherical surface device of the submarine air navigation periscope lens. This standard applies to the development, production and use of the spherical mask device for the periscope lens of submarine air navigation. Other types of periscope lens protective cover devices can also be used as a reference.

CB 1234-1993 history

• 1993 CB 1234-1993 Test method for submarine air navigation periscope head spherical mask device