ISO 20155:2017规定了在实验室条件下，通过测量入口和出口管道段的声压，确定船用泵作为双端口声源的管道内流诱发噪声源特性的试验方法。 本试验方法适用于在稳定条件下运行的直径超过50 mm的所有类型离心泵。 试验方法的合适频率范围约为10 Hz至1000 Hz，较高频率取决于管道的内径，平面声波在管道中传播。

ISO 20155:2017 specifies a test method for determining flow induced in-pipe noise source characteristics of a ship-used pump as a two-port sound source in laboratory conditions by measuring acoustic pressures in the pipe reaches of inlet and outlet. The test method is applicable to all types of centrifugal pumps with a diameter over 50 mm operating under steady conditions. The suitable frequency range of the test method is about 10 Hz to 1 000 Hz, and the upper frequency is dependent on the inner diameter of the pipe, in which the plane acoustic wave propagates.