本标准规定了选择和遵循常用数学区间模型之一的基本区间算术（IA）运算。本标准支持在区间计算中实际使用的IEEE-754/2008浮点类型。将定义例外条件，并规定这些条件的标准处理。基于供应商代表和现有系统所有者的输入，模型的一致性受到实际考虑的影响。 该标准在硬件和编程语言级别之间提供了一个层次。它不要求在硬件中实现任何操作。它没有将基本操作的任何实现定义为编程语言中的函数。

This standard specifies basic interval arithmetic (IA) operations selecting and following one of the commonly used mathematical interval models. This standard supports the IEEE-754/2008 floating point types of practical use in interval computations. Exception conditions will be defined and standard handling of these conditions will be specified. Consistency with the model is tempered with practical considerations based on input from representatives of vendors and owners of existing systems. The standard provides a layer between the hardware and the programming language levels. It does not mandate that any operations be implemented in hardware. It does not define any realization of the basic operations as functions in a programming language.