Military Standard of the People's Republic of China-Commission of Science,Technology and Industry for National Defence
Latest
GJB 5489.2-2005
Scope
This part specifies the inspection methods for the appearance and surface quality, size, weight and force, spring, hardness, electrical parts performance, firing loading device performance, and flaw detection of aviation machine guns. This section applies to the static inspection of aviation machine guns.
GJB 5489.2-2005 Referenced Document
GB/T 230 Metallic materials--Rockwell hardness test
GB/T 231 Metallic materials--Brinell hardness test