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    Tag Archives for Elos Expert Line PO4 Kit

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    First Photos of Elos PO4 Expert Line Chart

    You’re looking at the first image of the finalized Elos Expert Line Phosphate (PO4) Test Kit “resolution chart”. The colorimetric based kit  [h/t Sev] uses two test tubes, one of which is a control, that are slid into the simple foam folder. To find the actual measurement the user then looks directly down the tubes […]