为便于使用本规范,将下列名词的定义规定如下:1.变更(*注1)是指改变任何在原制造厂的数据报告书中所载的能影响到锅炉或压力容器的承压能力的项目。非物理性的变化,例如提高锅炉或压力容器的最高许可工作压力(内压或外压)或设计温度,均须认为是变更。降低最低温度以致需做补充的机械性能试验时,亦须认为是变更。 In order to facilitate the use of this code, the following definitions of terms are defined as follows: 1. Change (* Note 1) refers to the item that changes the pressure bearing capacity of any boiler or pressure vessel contained in any original manufacturer's data report . Non-physical changes such as increasing the maximum permissible working pressure (internal pressure or external pressure) or design temperature of a boiler or pressure vessel shall be considered as changes. When lowering the minimum temperature, the mechanical properties test to be supplemented shall be considered as a change.