This Standard specifies the terms and definitions, trademark, technical requirements, testing and sampling method, test rules, other testing method of the cast, mark, packaging, rust protection and storage requirements of the spheroidal graphite iron castings. This Standard is applicable to normal and low-alloy spheroidal graphite iron castings which are casted through sand-mold or casting mold of which the heat conductivity is similar to sand mold. For spheroidal graphite iron castings made in the special type casting method, this Standard can be served as the reference.