说明

• Description Condition: 100 percent Brand New and High Quality Take correct alkaline/acid checks with this pack of eighty Litmus paper strips Each book also includes a color chart Specifications The scale reads from 1 to 14: 1 - 3 signifies a very acidic substance 4 - 6 signifies an acidic substance 7 indicates impartial eight - eleven indicates alkalinity 12 - 14 signifies a completely excessive level of alkalinity Package Included 1 x books containing eighty strips (80 strips in total)

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