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ISO 20155:2017

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ISO 20155:2017 Ships and marine technology - Test method of flow induced in-pipe noise source characteristics for a ship-used pump

standard by International Organization for Standardization, 08/01/2017

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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.

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Edition: 1st Published: 08/01/2017 Number of Pages: 32File Size: 1 file , 1.2 MB Same As: BS ISO 20155:2017