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Point of Reference
10 dBA is the sound level of normal human breathing. To put it into perspective, thunder is a whopping 120 dBA...more

Environmental Noise Levels
The max exposure time at 85 dBA is 8 hours, at 110 dBA it's just 1 min 29 seconds. If exposed, limit the time and wear hearing protection...more
Part L1A
Conservation of fuel and power IN NEW DWELLINGS

Letchworth - Domestic BS4142 - 020 3390 0301
The office that covers this area is: London
Phone Number: 020 3390 0301 Email: letchworth@e2consultants.co.uk
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For further Domestic BS4142 information for your area, be sure to check out Sound-Testing-London.co.uk.
Our other services include:
Domestic BS4142 can also be known as:
Building and Room Acoustics, Noise Survey For Residential Development, Domestic Industrial Noise Survey, Domestic Environmental Noise Assessment, BS8233 Noise Assessment and Noise Survey, Sound Testing Environmental Noise, Domestic Noise Survey For Residential Development, Domestic Sound Testing Environmental Noise, Industrial Noise Survey, Domestic Building and Room Acoustics, Environmental Noise Assessment, Domestic Noise Impact Assessment, Domestic PPG24, BS4142, PPG24, Noise Impact Assessment,


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