This International Standard specifies methods for determining the sound power level or sound energy level of a noise source from sound pressure levels measured on a surface enveloping the noise source (machinery or equipment) in an environment that approximates to an acoustic free field near one or more reflecting planes. The sound power level (or, in the case of noise bursts or transient noise emission, the sound energy level) produced by the noise source, in frequency bands or with A-weighting applied, is calculated using those measurements.
iso 3740 pdf free 17
Bonilla, S.H.; Silva, H.R.O.; Terra da Silva, M.; Franco Gonçalves, R.; Sacomano, J.B. Industry 4.0 and Sustainability Implications: A Scenario-Based Analysis of the Impacts and Challenges. Sustainability 2018, 10, 3740.
Bonilla SH, Silva HRO, Terra da Silva M, Franco Gonçalves R, Sacomano JB. Industry 4.0 and Sustainability Implications: A Scenario-Based Analysis of the Impacts and Challenges. Sustainability. 2018; 10(10):3740.
Bonilla, Silvia H., Helton R. O. Silva, Marcia Terra da Silva, Rodrigo Franco Gonçalves, and José B. Sacomano. 2018. "Industry 4.0 and Sustainability Implications: A Scenario-Based Analysis of the Impacts and Challenges" Sustainability 10, no. 10: 3740.
2ff7e9595c
Comments