(If this appears correctly) it should be ÂµA but it's quicker to type uA. Answer: UA stands for Urine Analysis.. When you pee in a cup and the doctors take it and analyze it to see if you or whoever has done any drugs or drank any alcohol in the past two weeks. Microamperes. The u is the closest letter many computer keyboards have to the Greek mu symbol.
Do not blind other drivers with your high beam headlights. Dim your lights by switching to low beams before you are 500 feet from a vehicle coming toward you. If you are following another vehicle, change to low beams when you get closer than 300 feet. Use your high beams whenever possible as long as it is not illegal (i.e., in open country when other cars are not near or on dark city streets when no other traffic would be affected by your high beams).
BS5839 part 1 thus limits the mounting height of point detectors for life protection to 10.5m, or 15m for property protection.This is not necessarily the case with beam smoke detectors since they can sample across the entire smoke plume, and are thus ideally suited for high ceiling applications.owever since they are not subject to the spreading effect of a ceiling on a plume of smoke, the beam spacing should be reduced. BS5839 part 1 recommends that supplementary beam detector cover should be 12.5% of the height of the beam above the highest likely seat of a fire to either side of the detector beam.