| Brand | Unbranded |
|---|
Check the listing for details. 5M pH Test Paper Roll: Alkaline Acid Indicator Meter, 0-14 pH Range. Condition: New. Listed at 6.69 USD. 8 - 11 indicates alkalinity. 12 - 14 indicates a very high level of alkalinity. 0 - 3 indicates a very acidic substance. 4 - 6 indicates an acidic substance. Can not indicate the Acid or alkali solution when its density was lower than 0.01%.
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