ISO 5922:2005规定了用于制造铸件的两种可锻铸铁，即白心可锻铸铁和黑心可锻铸铁的要求。 根据单独铸造试件的机械性能，对每种类型的可锻铸铁进行分类。 ISO 5922:2005仅适用于铸造到砂型或具有类似热扩散率的模具中的可锻铸铁。

ISO 5922:2005 specifies requirements for two types of malleable cast iron, namely whiteheart malleable cast iron and blackheart malleable cast iron, used in the manufacture of castings. Classification is given for each type of malleable cast iron on the basis of mechanical properties determined on separately cast test pieces. ISO 5922:2005 is applicable only to malleable cast iron cast into sand moulds or moulds of comparable thermal diffusivity.