Randy Holmes-Farley
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Phosphorous LR reagent HI 713-25 lot H102 EXP 08-2019 was 0.03. Phosphorus Ultra OR reagent HI736-0 lot H071 EXP 05-2020 was 27 or 0.083. That is a difference of 0.053.
Which is within the Hanna claimed error of the 713 of +/- 0.04 ppm phosphate and the 736 of +/- 0.015 ppm phosphate. [emoji4]
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