Simple Dip-Wait-Read Testing Method Low cost and high accuracy Test strips are provide in foil with individual colour chart Sensitivity: 0, 40, 80, 120, 180, 250, 425, 1000 ppm (mg/l) or 0, 2, 5, 7, 11, 15, 25, 58 gpg Contains: 5 strips in foil with colour chart printed on each foil
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