pH 1 14 Indicator Strips for Precise pH Testing of Multiple Substances
ab 3,30 €
3 for very acidic substances. 4- 6 for acidic substances. Litmus paper changes color within 15 seconds to match pH scale color chart. -14PH test paper. Scale to 14 Due to the difference of different monitors, the picture may not reflect the actual color of the item.
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