Metodología de ensayo de laboratorio de la Facultad de Ingeniería Civil y Mecánica para la medición de ruido ambiental y laboral

Abstract

In this technical project, the methodology for Environmental and Occupational noise testing was developed and validated, the development and validation corresponds to a verification of the test method of Annex 5 of Ministerial Agreement 097-A, NTE INEN-ISO 1996-1 and 2 -2014 for Environmental noise; Art 55 of Executive Decree 2393, NTE INEN-ISO 9612-2014 for occupational noise, which allows evaluating the specific noise with impulsive characteristics and with energy content at low frequencies and the Level of exposure at work respectively. For this purpose, real measurements were performed. For the assurance and validity of the method two levels were used with a class I sound level meter, it was configured in the required parameters for both Environmental and Occupational noise: A-weighted sound pressure level (slow and impulsive), Cweighted sound pressure level (slow), total noise was measured using the Leq 15s methodology with the fixed noise sources on and residual noise with the fixed noise sources off and for Occupational Noise the task-based strategy was used. For both methods, the overall performance of the methodology was evaluated and accepted in a working range of 20 dB to 140 dB, since it was demonstrated that the acceptance criteria met the established validation parameters: CVr and CVI precision measurement less than or equal to 5 percent, veracity in uncertainty less than or equal to 10 percent of the minimum measurement taken by the sound level meter and dynamic uncertainty.