Examples of use of DBA
1. At 110 dBA, the maximum exposure time is one minute and 2' seconds.
2. BICYCLE RENTALS & TOURS: http://www.utc88.com/ and http://www.cyclechina.com/ ECONOMY ACCOMMODATIONS: Peking Youth Hostel, http://www.hihostels.com/dba/hostel024648.en.htm.
3. According to the National Institute for Occupational Safety and Health, US, [1''8], the maximum exposure time at 85 dBA is 8 hours.
4. EXPOSURE TO SOUNDHow loud is too loud Experts agree that continued exposure to noise above 85 dBA over time, will cause hearing loss.
5. Another American company is contributing to the project: Johnson Heater Corporation dba Johnson–MarCraft Inc., also a Missouri based Corporation, will sell air–handling equipment, a major component of air structure technology, to the operation.