本规范规定了石油和天然气井施工中使用的套管弓形弹簧扶正器的测试、性能和标记要求。这些程序为制造商的设计、材料和工艺规范提供验证测试，并定期测试以确认产品性能的一致性。本规范不适用于其他装置，例如刚性扶正器和水泥篮，或用于其他目的的弓形弹簧扶正器（例如，钢丝绳工具、砾石充填、内管柱）。

This specification provides testing, performance, and marking requirements for casing bow-spring centralizers to be used in oil and natural gas well construction. The procedures provide verification testing for the manufacturer's design, materials, and process specifications, and periodic testing to confirm the consistency of product performance. This specification is not applicable to other devices, such as rigid centralizers and cement baskets, or bow-spring centralizers used for other purposes (e.g., wireline tools, gravel pack, inner string).