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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

Sound Intensity
Sound intensity's measured in Decibels (dB). An logarithmic scale where an increase of 10 dB gives an apparent doubling of loudness...more
Part L1B
Conservation of fuel and power in Existing Dwellings

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PEA can also be known as:
New Build EPC, Domestic On Construction EPC, New Build Domestic EPC, New Build On Construction EPC, On Construction EPC, New Build On Construction Domestic EPC, Predicted Energy Assessment,
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