ISO 14961:2002规定了空间数据和信息传输系统参数值语言（PVL）规范的要求。它为命名和表达数据值建立了标准的关键字值类型语言，并提供了PVL的概述和正式语法规范。PVL定义了两个版本，基本版本（CCSD0006）和扩展字符集版本（CCSD0008）。 ISO 14961:2002中的规范适用于所有需要关键字值语言的空间相关科学和工程数据交换。

ISO 14961:2002 specifies the requirements for a parameter value language (PVL) specification for space data and information transfer systems. It establishes a standard keyword value type language for naming and expressing data values and provides an overview and formal syntax specification of the PVL. Two versions of PVL are defined, the basic version (CCSD0006) and an extended character set version (CCSD0008). The specifications in this ISO 14961:2002 are applicable to all space-related science and engineering data exchanges where a keyword value language is desired.