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Reverberation Time
The reverberation time of a room is defined as the time it takes for sound to decay by 60 dB after an abrupt termination...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 L2B
Conservation of fuel and power

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Display Energy Certificates can also be known as:
DEC, Display Energy Certificate,
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In County B
DEC in Banffshire, DEC in Bedfordshire, DEC in Berkshire, DEC in Borders, DEC in Buckinghamshire,