GOST 20467-1985 Fitting pipe connections. Durability estimation of connections with a cut ring and a ball nipple
GOST 23207-1978 Fatigue strength. Terms, definitions and symbols
GOST 24074-1980 End tube connections with cut ring. Construction
GOST 25.101-1983 Strength calculation and testing. Representation of random loading of machine elements and structures and statistical evaluation of results
GOST 25.507-1985 Strength calculation and testing in machine building. Methods of fatigue testing under service loading. General requirements
GOST 27456-1987 history
1987GOST 27456-1987 Theaded pipelineconnections. Procedure of testing on vibrostrength