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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
Part L2B
Conservation of fuel and power
Commercial_Air_Testing is sometimes referred to as Commercial AIR pressure tests, Commercial AIR tightness tests, Commercial AIR tests, Commercial AIR pressure testing, Commercial AIR tightness testing.
For further Commercial-Air-Testing information for your area, be sure to check out Air-Testing-.co.uk.
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