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 - 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. It is also applicable to dollys, as defined in EN 12674-1, whether or not intended for side frame or post fitment. It is not applicable to the specialised use of fork lift and reach trucks with purpose-built roll containers.