@article {Whitby:2008:1938-6478:3877,
	author = "Whitby, G. Elliott and Sotirakos, Bill and Bolton, James R.",
	title = "A Comparison of Two Methods for Measuring the UV Output of Low Pressure Mercury Lamps in Air",
	journal = "Proceedings of the Water Environment Federation",
	volume = "2008",
	number = "13",
	year = "2008",
	abstract = "A standard bioassay has never been accepted for sizing UV systems for disinfecting non-reuse wastewaters. The majority of UV systems for non-water reuse applications are sized using a computer program called UVDIS. This requires the use of the UV output of a lamp measured in air. Over estimates of lamp output can lead to undersized UV systems. A standard measurement method does not exist, but one has been proposed by the IUVA Manufacturers' Council based on the Keitz method. This method and another method called `integration over a sphere' were compared using a low pressure high output UV lamp. The two methods gave the same results within experimental error. The results also showed that the conditions for testing a lamp must be carefully defined for that particular lamp. A standard bioassay must be developed for UV systems for non-reuse wastewater.",
	pages = "3877-3889",
	url = "http://www.ingentaconnect.com/content/wef/wefproc/2008/00002008/00000013/art00066"
}