scope:

This noise test code specifies all the information necessary to carry out efficiently and under standardized conditions the determination, declaration and verification of the noise emission characteristics of several groups of foundry machinery. It specifies noise measurement methods that are available and operating and mounting conditions that shall be used for the test. Noise emission characteristics include emission sound pressure levels at work stations and the sound power level. The determination of these quantities is necessary for: - manufacturers to declare the noise emitted, - comparing the noise emitted by machines in the group concerned, - purposes of noise control at the source at the design stage. The use of this noise test code ensures the reproducibility of the determination of the noise emission characteristics within specified limits determined by the grade of accuracy of the basic noise measurement method used. Noise measurement methods allowed by this standard are engineering methods (grade 2) and survey methods (grade 3).