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Estimating color in Hazen units by spectrophotometry
A simple colorimetric procedure was developed for apparent color determinations utilizing platinum‐cobalt standards and expressing the results in Hazen units. The method entails measuring the absorbance of a sample with a colorimeter using two broad band filters; a second absorbance reading is required to obtain a suitable correction for particulates. With this method, the human response factor is minimized, and the precision, as estimated by standard deviation, is one Hazen unit.
Estimating color in Hazen units by spectrophotometry
A simple colorimetric procedure was developed for apparent color determinations utilizing platinum‐cobalt standards and expressing the results in Hazen units. The method entails measuring the absorbance of a sample with a colorimeter using two broad band filters; a second absorbance reading is required to obtain a suitable correction for particulates. With this method, the human response factor is minimized, and the precision, as estimated by standard deviation, is one Hazen unit.
Estimating color in Hazen units by spectrophotometry
Crowther, Joan (author) / Evans, John (author)
Journal ‐ American Water Works Association ; 73 ; 265-270
1981-05-01
6 pages
Article (Journal)
Electronic Resource
English
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