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Hanna Colorimeters
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10-10-2013, 09:44 PM
sphelps
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Join Date: May 2006
Location: Lyalta, East of Calgary
Posts: 4,777
mg/L = ppm for pure water only since 1L = 1kg. So your conversion will be off. Personally I would go by the Hanna and deem the other kits inaccurate.
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