标准摘要
[中文适用范围]： 通过各种添加、替换、删除和修改来修订 IEC 出版物 258，以使其与 IEC 出版物 51 保持一致。 [外文原描述]： Contains the amended title and scope, and several clauses to bring this publication in line with IEC 60051.
英文名称Amendment 1 - Direct acting recording electrical measuring instruments and their accessories