Thread: A favour to ask if you have a Hanna ULR PO4 reader and RO/DI
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Old 12-19-2011, 06:38 AM
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Default A favour to ask if you have a Hanna ULR PO4 reader and RO/DI
Can you please take a measurement of your RO/DI phosphate using a Hanna ULR reader and post the result?

I get 11ppb. Since that's 0.011 ppm, it's a very low reading but I'm sort of offended it's not an outright 0.0 and now I think maybe it's time to replace the RO cartridge...

But I've never been able to measure in parts-per-billion before. That's a pretty low range sensitivity.

Anyone care to burn through a test envelope for me and let me know the # you get? Please and thank you?
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