8 - 11 indicates alkalinity. 12 - 14 indicates a very high level of alkalinity. Simply press the testing strip to the object or liquid you are testing. Half second later, take out the paper and using the color chart included, compare the color change of the paper to find out the acidity level of your testing subject.
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The test strip color changes must be matched with the pH scale color chart within about 15 seconds. Different pH content discoloration range is different, by comparing the color card ratio: the smaller the number, the stronger the acidity, the larger the value, the stronger the alkalinity.
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8 - 11 indicates alkalinity. 12 - 14 indicates a very high level of alkalinity. The scale reads from 1 to 14 Each book also includes a color chart.
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8 - 11 indicates alkalinity. 12 - 14 indicates a very high level of alkalinity. compare the color change of the paper to find out the acidity level of your testing subject. The test sdivip color changes must be matched with the pH scale color chart within about 15 seconds.
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160pcs 2 books Full Range 1-14 pH Test Paper Strips Litmus Testing Indicator
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8 - 11 indicates alkalinity. 12 - 14 indicates a very high level of alkalinity. The scale reads from 1 to 14 7 indicates neutral.
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8 - 11 indicates alkalinity. 12 - 14 indicates a very high level of alkalinity. The scale reads from 1 to 14 Each book also includes a color chart.
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