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Good Hearing?
A typical person with good hearing can hear from about 20Hz to 20kHz (the audio bandwidth). A person's voice will usually range from 500Hz to 2kHz...more

The Decibel Scale
Gives an approx of human perception of loudness. This is because the human ear has a logarithmic response to changes in sound level...more
Part E
Resistance of the Passage of Sound

Selby - Duct Testing - 01924 578 029
The office that covers this area is: Wakefield
Phone Number: 01924 578 029 Email: selby@e2consultants.co.uk
Our other services include:
Duct Testing can also be known as:
Part F Ventilation Testing, Air Flow Rate Testing, Part F Ventilation Certificate, Part F Fan Testing, Ventilation Testing Equipment, Ventilation Commissioning Certificate, Part F Testing,


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Company No. 06728970