本文件定义了参考温度和标准参考温度的概念，并规定了物体几何和尺寸特性规范的标准参考温度值。几何和尺寸特性的一些示例包括工件的尺寸、位置、方向（包括角度）、形状和表面纹理。 本文件也适用于验证或校准中使用的被测物的定义。

This document defines the concepts of a reference temperature and the standard reference temperature and specifies the standard reference temperature value for the specification of geometrical and dimensional properties of an object. Some examples of geometrical and dimensional properties include size, location, orientation (including angle), form and surface texture of a workpiece. This document is also applicable to the definition of the measurand used in verification or calibration.