This European standard specifies general design and safety principles for the four main styles of roll container, demountable, folding," nesting and rigid and the seven derived forms as defined in EN 12674-1:1999 ""Roll Containers - Part 1:Terminology"". All styles of roll container defined in EN 12674-1 irrespective of the materials from which they are made should conform to the normative parts of this standard.#",,#