ISO 9906:2012规定了客户接受旋转动力泵（离心泵、混流泵和轴流泵）的液压性能测试。它旨在用于泵测试设施（如制造商的泵测试设施或实验室）的泵验收测试。ISO 9906:2012可应用于任何尺寸的泵和任何表现为清洁冷水的泵送液体。 它规定了三个接受级别: 公差更严格的1B、1E和1U级； 公差更宽的2B级和2U级； 3B级，公差更广。 它适用于没有任何配件的泵本身，或者适用于与其上游和/或下游配件的全部或部分相关联的泵的组合。

ISO 9906:2012 specifies hydraulic performance tests for customers' acceptance of rotodynamic pumps (centrifugal, mixed flow and axial pumps). It is intended to be used for pump acceptance testing at pump test facilities, such as manufacturers' pump test facilities or laboratories. ISO 9906:2012 can be applied to pumps of any size and to any pumped liquids which behave as clean, cold water. It specifies three levels of acceptance:

• grades 1B, 1E and 1U with tighter tolerance;
• grades 2B and 2U with broader tolerance;
• grade 3B with even broader tolerance.

It applies either to a pump itself without any fittings or to a combination of a pump associated with all or part of its upstream and/or downstream fittings.