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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

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 L1B
Conservation of fuel and power in Existing Dwellings

Hertfordshire - Code for Sustainable Homes Daylight Calculation - 020 3390 0301
The office that covers this area is: London
The towns & cities that are covered within this county are:
Abbots Langley, Baldock, Barnet, Berkhamsted, Bishop's Stortford, Borehamwood, Broxbourne, Buntingford, Bushey, Cheshunt, Chorleywood, Harpenden, Hatfield, Hemel Hempstead, Hertford, Hitchin, Hoddesdon, King's Langley, Knebworth, Letchworth, Much Hadham, Potters Bar, Radlett, Redbourn, Rickmansworth, Royston, Sawbridgeworth, St. Albans, Stevenage, Tring, Waltham Cross, Ware, Watford, Welwyn Garden City, Welwyn,
Phone Number: 020 3390 0301 Email: hertfordshire@e2consultants.co.uk
Our other services include:
Code for Sustainable Homes Daylight Calculation can also be known as:
CSH, Sustainable Homes, C4SH, Code Assessment, Code for Sustainable Homes,


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