除了ISO 10972-1中给出的起重机一般要求外，ISO 10972-2:2009还规定了移动式起重机机构的具体要求。 这些附加要求涉及起重机机构的布置、特征和特性，以及某些机构部件的最低要求。 ISO 10972-2:2009不包括关于不同极限状态（屈服强度、疲劳、磨损）的能力证明计算规则。

ISO 10972-2:2009 establishes requirements specific to the mechanisms of mobile cranes, in addition to the general requirements for cranes given in ISO 10972-1. These additional requirements concern the arrangement, features and characteristics of the crane mechanisms, and the minimum requirements for certain mechanism components. Rules for the proof of competence calculation regarding different limit states (yield strength, fatigue, wear) are excluded from ISO 10972-2:2009.