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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

Sound Absorption
The loss of sound energy when sound waves come into contact with an absorbent material such as ceilings, walls, floors and other objects...more
Part L1A
Conservation of fuel and power IN NEW DWELLINGS

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Water Usage Calculations can also be known as:
Part G, Part G Water Calc, Water Calculations, Part G Water Calculation, Water Usage Calculation,
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