The standard contents dimensions, characterization, requirements for materials and design as well as test-conditions and requirements for marking of vertical tanks of steel; walled for above ground storage of flammable and inflammable liquids exposed to danger water.
DIN 6618-1:1989 history
1989DIN 6618-1:1989 Vertical single-wall steel tanks for the above ground storage of flammable and non-flammable water polluting liquids