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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

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
Part E
Resistance of the Passage of Sound

Dumfries and Galloway - Water Usage Calculation - 0141 894 0107
The office that covers this area is: Glasgow
The towns & cities that are covered within this county are:
Annan, Castle Douglas, Dalbeattie, Dumfries, Kirkcudbright, Langholm, Lockerbie, Mill Hill, Moffat, Newton Stewart, Sanquhar, Stranraer, Wigtown,
Phone Number: 0141 894 0107 Email: dumfries-and-galloway@e2consultants.co.uk
Our other services include:
Water Usage Calculation can also be known as:
Part G Water Calculation, Part G, Part G Water Calc, Water Calculations,


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Company No. 06728970