PH Test Strips
Contains a total of 20 packs of pH test paper, which can perform 1600 pH tests Universal Application pH 1-14 Full Range Test Strips. pH < 7 is acidic,
20 Pack pH Test Strips. 1600 Strips Universal pH 1-14 Test Paper, for Teaching, Chemical Experiments, Saliva, Urine, Water and Soil pH Monitoring
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