ISO 5674:2004规定了用于确定农业和林业中使用的拖拉机和机械上的PTO驱动轴的护罩的强度和耐磨性的实验室测试及其验收标准。它旨在与ISO 5673结合使用。 ISO 5674:2004适用于这种PTO传动轴保护装置及其限制装置的试验。它不适用于设计和构造为用作步骤的防护装置的测试。也不适用于使用受国家规定限制的防护类型

ISO 5674:2004 specifies laboratory tests for determining the strength and wear resistance of guards for PTO drive shafts on tractors and machinery used in agriculture and forestry, and their acceptance criteria. It is intended to be used in combination with ISO 5673. ISO 5674:2004 is applicable to the testing of such PTO drive shaft guards and their restraining means. It is not applicable to the testing of guards designed and constructed to be used as steps. Neither is it applicable to guard types whose use is limited by national regulations.