In the majority of cases, technical specifications of "noisy" products (e.g. air-conditioners, pumps, fans, generators,
lawnmowers) do not provide adequate information about the emission of noise.
Pollution Control Consultancy and Design (PCCD) carry out tests, which determine
- sound power level of products
(in 1/3 octave bands), based on in-situ measurements of the sound intensity
(for details, please see:
- tonality and low-frequency contents (in 1/3-octave bands or narrow-bands);
which are essential to predict the noise impact of
products operating in a particular location, in terms of the EPA
Noise Policy for Industry (NPfI).
Such information allow to determine whether the products
need any noise control measures (e.g. an acoustical
enclosure, a silencer, a noise barrier) in the particular