Spa chlorine measurement via temperature shift UV spectrometry
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United States of America Patent
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Jul 3, 2012
Grant Date -
Sep 3, 2009
app pub date -
Feb 18, 2009
filing date -
Feb 28, 2008
priority date (Note) -
Expired
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Abstract
A method of measuring chlorine concentration of a solution comprising making a first measurement of transmission of ultraviolet light at a selected wavelength through a first sample of said solution at a first temperature; making a second measurement of the transmission of ultraviolet light at said selected wavelength through a second sample of said solution at a second temperature, said second temperature being different than said first temperature; and determining the chlorine concentration in said solution using the results of said first and second measurements.
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