- Minimum quantity should 20 of "3M 2128 stoffilter P2 R"
pH testing kit to accurately measure the pH of various substances.
pH testing kit to accurately measure the pH of various substances.
Color card: | ||
pH 1-3 | extremely acidic | |
pH 4-6 | Acid | |
pH 7 | Neutral | |
pH 8-11 | Alkaline | |
pH 12-14 | Extremely alkaline |
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