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DIN EN 21680-2:1991-11

Отменен
Acoustics; test code for the measurement of airborne noise emitted by rotating electrical machinery; part 2: survey method (ISO 1680-2:1986); german version EN 21680-2:1991 — 14 стр.
ICS
17.140.20 Noise emitted by machines and equipment / Шум от машин и оборудования