本标准规定了网络通道（NC）和网络通道接口（NCI）代码的规格和特性。本标准包含的条款涵盖了其目的和范围，并描述了网络通道和网络通道接口代码的格式结构和数据元素。它还包含定义和引用。它的目的是提供一个标准，促进人与机器之间的信息交换。

This standard provides the specifications and characteristics of Network Channel (NC) and Network Channel Interface (NCI) codes. This standard contains clauses that cover its purpose and scope and describe format structures and data elements for network channel and network channel interface codes. It also contains definitions and references. Its intended use is to provide a standard that facilitates information exchange among humans and machines.