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Product Name：Nikken PH test pen
Product Code： XBL-06
Nikken PH test pen
It can easily measure the PH value of solid surfaces such as paper or cloth and pens.
Precautions:
In order to make a correct decision, the following must be observed:
1. Make color comparisons in bright places.
2. In order to make the judgment correctly, it must be judged in a short time (within 5 minutes).
3. It is difficult to get a correct judgment in places where more volatile substances (acids, alkalis) are produced.
Instructions:
Apply the liquid medicine and compare the color change of the applied part with the standard color chart attached to the test.
This determines the pH value.
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