This national 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 sand mould alloying pellet nodular cast iron pieces and the casting mould with similar sand mould.
As for spheroidal graphite iron castings made in the special type casting method, this standard can be served as the reference.
