This standard establishes the dimensional tolerances and related finishing touches for spheroidal graphite cast iron castings (see UNI 4544), cast in sand or earth, obtained with normal manufacturing processes and equipment (models, core boxes ).
UNI 7601-1984 history
1984UNI 7601-1984 Ductile iron cast in molding sand or soil, offset values without deviation and machining allowance stated
1976UNI 7601-1976 Pig iron castings with molded sand casting or sand cast spherical graphite. Offset value without deviation specification