ISO 13399-50:2013规定了切削刀具参考系统的参考词典及其描述性属性和值域。 ISO 13399-50:2013规定了包含以下内容的参考词典: 切削刀具参考系统类别的定义和标识，以及相关的分类方案； 表示切削刀具参考系统属性的数据元素类型的定义和标识； 用于描述上述数据元素类型的值域的定义和标识。 以下内容属于ISO 13399-50:2013的范围:代表切削刀具各种连接系统的标准数据；表示切削刀具连接系统的各种特性的标准数据；表示用于切削刀具的连接系统的属性的值域的标准数据；代表切削刀具的各种参考系统的标准数据；表示切削刀具参考系统的各种属性的标准数据；表示用于切削刀具参考系统属性的值域的标准数据；可以交换ISO 13399-50:2013中定义的标准数据的一种实现方法（ISO 10303-21）。

ISO 13399-50:2013 specifies a reference dictionary for reference systems for cutting tools, together with their descriptive properties and domains of values. ISO 13399-50:2013 specifies a reference dictionary containing:

• definitions and identifications of the classes of reference systems for cutting tools, with an associated classification scheme;
• definitions and identifications of the data element types that represent the properties of reference systems for cutting tools;
• definitions and identifications of domains of values for describing the above-mentioned data element types.

The following are within the scope of ISO 13399-50:2013: standard data that represent the various classes of connection systems for cutting tools; standard data that represent the various properties of connection systems for cutting tools; standard data that represent domains of values used for properties of connection systems for cutting tools; standard data that represent the various classes of reference systems for cutting tools; standard data that represent the various properties of reference systems for cutting tools; standard data that represent domains of values used for properties of reference systems for cutting tools; one implementation method by which the standard data defined in ISO 13399-50:2013 can be exchanged (ISO 10303-21).