Noise level evaluation in the resin figures manufacturing process
The investigation allowed the evaluation of the levels of noise in dedicated factories to the manufacture of decorativas resin figures, located in a population of the north of the Municipality of Toluca State Capital of Mexico. The study was developed with the objective to count on a reference mechanism to prevent risks to the health derived from the level with exhibition to the noise generated in this type of facilities, in such a way that the proprietors can protect to their personnel guaranteeing the development of their activities and not see themselves involved in labor demands. The investigation was limited the study of a single factory solely that is representative of the activities that are made normally in all the factories located in the zone, of which exist more than 50. For the measurements of the noise level, an integrating sound level meter was used type 2, of mark CEL Instruments® model CEL-328 and for the calibration of this was used an acoustic calipers mark CEL Instruments®, model CEL-282, series 2/11616221; the measurements and calibration were made taking in account the effective legislation in the matter of noise according to the Official Norm Mexicana NOM-011- STPS-2001, Conditions of Security and Hygiene in the Centers of Work Where Noise Is generated. Of the analysis of results it was observed that the level of noise in the areas of rectified and music, was with a NSCEAT, greater of 90 dB and in the remaining areas was smaller, but require of preventive measures since all presented/displayed 80 a greater NSCE of dB. In general the level of exhibition to the noise (NER) of the factory is of 86,6 dB, this value according to the norm applied in this study is necessary to implement some measures that allow to diminish the levels of noise with the purpose of avoiding labor diseases derived from the noise.