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DPD powder reagents for residual chlorine analyzer[x]close
I bought it to confirm the use condition of the hypo removal of the tap water, purifier "T * Vino", but it does not have a sample with the color condition sample attached. I searched on the inside of a small box, but nothing was attached.
Because it is a cheap and good subdivision it is convenient to keep It is a function check of a household water purifier, so it's used once every six months so it's quite expensive to use water purifier, so I use it to keep it firmly