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ISO 4412-3:1991
M00002804
New product
ISO 4412-3:1991 Hydraulic fluid power - Test code for determination of airborne noise levels - Part 3: Pumps - Method using a parallelepiped microphone array
standard by International Organization for Standardization, 08/01/1991
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This part closely follows the methods described in the two other parts, but allows the use of alternative pump mounting and drive configurations which are simpler and cheaper to implement in an anechoic chamber. May also be applied to test motors.