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Sound Levels
Decibels (dB) are most commonly used as a measure of sound level, but they are also used in electronics, signals and communications...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
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Part F Ventilation Certificates can also be known as:
Part F Fan Testing, Part F Testing, Air Flow Rate Testing, Part F Ventilation Certificate, Ventilation Testing Equipment, Ventilation Commissioning Certificate, Duct Testing, Part F Ventilation Testing,
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Company No. 06728970
In County G
Part F Testing & Compliance in Glamorgan, Part F Testing & Compliance in Gloucestershire, Part F Testing & Compliance in Grampian, Part F Testing & Compliance in Greater Manchester, Part F Testing & Compliance in Gwent, Part F Testing & Compliance in Gwynedd County,