1—36
Chlorine, Free and Total, LR, continued
Method Performance
Estimated Detection Limit (EDL) = 0.02 mg/L
Typical precision (95% confidence interval) = 1.00 ± 0.05 mg/L
Monochloramine,
LR method
Causes a gradual drift to higher readings. When read
within 1 minute after reagent addition, 3 mg/L
monochloramine causes less than a 0.1 mg/L increase
in the reading.
Ozone Interferes at all levels.
Interfering
Substance
Interference Levels and Treatments
5957088.book Page 36 Friday, March 22, 2013 3:54 PM
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