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Overview ISO 4412-2:1991 - Hydraulic fluid power - Test code for determination of airborne noise levels - Part 2: Motors - defines a standardized test code to determine airborne noise (sound power) r…
Overview ISO 4412-1:1991 outlines a standardized test code for the determination of airborne noise levels produced by hydraulic fluid power pumps. Specifically focused on pumps within fluid power sys…
Overview ISO 4412-3:1991 - "Hydraulic fluid power - Test code for determination of airborne noise levels - Part 3: Pumps - Method using a parallelepiped microphone array" is an ISO test code for meas…