This international Standard describes with reference to ISO 230-5 the mechanical and acousticalspecifications necessary for a reproducible test method for the determination of airborne noise emitted by metal-cutting machines and related auxiliary equipment.The purpose of this Standard is to facilitate obtaining comparable test results on the noise emission of similar machines. The results of the tests can be used for comparison, acceptance, maintenance or any other purpose.This International Standard specifies in particular operating conditions for the measurement of noiseemitted by metal cutting machines excluding any cutting process. These operating condi