Објављен
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.
ОБЈАВЉЕН
ISO 4412-3:1991
90.93
Одлука о потврђивању стандарда
30. 10. 2025.
ПРОЈЕКАТ
ISO/PWI 4412-1