规定了一种测试方法，以确定移动式起重机平衡施加在其钩块上的负载的最大能力。本试验适用于承载能力基于静态抗倾覆能力的起重机。该试验不得用于基于结构强度或因可用负载起重机、起重臂起重机或起重臂伸缩能力而受到限制的起重机。适用于ISO 4306-2中定义的所有移动式起重机。

Specifies a test method to determine the maximum capacity of a mobile crane to counterbalance loads applied on its hook block. The test is applicable for cranes whose capacity to support loads is based on its static resistance to overturning. The test shall not be used on cranes whose capacity is based on structural strenght or on limitations due to available load hoist, jib hoist or jib telescope capability. Applies to all mobile cranes as defined in ISO 4306-2.