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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

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
Part L2A
Conservation of fuel and power in new builds other than dwellings

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Display Energy Certificate can also be known as:
DEC,
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In Area U
DEC in Uckfield, DEC in Uffington, DEC in Ullapool, DEC in Ulverston, DEC in Umberleigh, DEC in Uphampton, DEC in Upminster, DEC in Upper Edmonton, DEC in Upper Holloway, DEC in Upper Hulme, DEC in Uppingham, DEC in Upton Upon Severn, DEC in Urmston, DEC in Usk, DEC in Uttoxeter, DEC in Uxbridge,