ISO 4304:1987 Preview
Cranes other than mobile and floating cranes -- General requirements for stability
This standard was last reviewed and confirmed* in 2013.
*Therefore this version remains current
Specifies the conditions to be met when verifying, by calculation, the stability of all crane types defined in ISO 4306-1 that are subject to tilting. It assumes that they are standing on a firm, level supporting surface or track. The sliding of cranes on their tracks is not covered.