ISO 22389-1:2010规定了弯曲应用中用作结构构件的预制木基工字梁的要求。 它给出了建立和评估预制木质工字梁结构能力的程序。考虑的承载力包括剪切力、力矩、刚度、承载力和法兰拉伸和压缩。给出了确定通用细节的程序，并详细列出了特定于木质工字梁的某些最终用途注意事项。

ISO 22389-1:2010 specifies the requirements for prefabricated wood-based I-beams used as structural members in bending applications. It gives procedures for establishing and evaluating structural capacities of prefabricated wood-based I-beams. The capacities considered are shear, moment, stiffness, bearing, and flange tension and compression. Procedures for establishing common details are given and certain end-use considerations specific to wood-based I-beams are itemized.