Military Standard of the People's Republic of China-General Armament Department
Latest
GJB 994A-2014
Scope
This specification specifies requirements for quartz marine chronometers. This specification applies to marine quartz marine astronomical clocks (hereinafter referred to as "astronomical clocks").
GJB 994A-2014 history
2014GJB 994A-2014 Specifications for marine use quarts chronometer
2005GJB 994A-2005 Specification for quartz marine chronometer