ISO 13626:2003规定了石油工业钻井和修井作业中适用钢结构的要求和建议，提供了统一的结构评级方法，并提供了两种产品规范等级。 ISO 13626:2003适用于所有标准钢井架、特殊钢井架、移动式桅杆和下部结构的所有新设计。 附录A提供了一些标准补充要求，这些要求仅在买方指定的情况下适用。

ISO 13626:2003 specifies requirements and gives recommendations for suitable steel structures for drilling and well-servicing operations in the petroleum industry, provides a uniform method of rating the structures, and provides two product specification levels. ISO 13626:2003 is applicable to all new designs of all standard steel derricks, special steel derricks, portable masts and substructures. Annex A provides a number of standard supplementary requirements which apply only if specified by the purchaser.