ECMA 160-1992 DETERMINATION OF SOUND POWER LEVELS OF COMPUTER AND BUSINESS EQUIPMENT USING SOUND INTENSITY MEASUREMENTS; SCANNING METHOD IN CONTROLLED ROOMS
1992ECMA 160-1992 DETERMINATION OF SOUND POWER LEVELS OF COMPUTER AND BUSINESS EQUIPMENT USING SOUND INTENSITY MEASUREMENTS; SCANNING METHOD IN CONTROLLED ROOMS
1991ECMA 160-1991 Determination of Sound Power Levels of Computer and Business Equipment Using Sound Intensity Measurements; Scanning Method in Controlled Rooms