说明

• Description： * Brand new and advantageous *Take accurate alkaline/acid checks with this pack of 80 Litmus paper strips *Each ebook also features a color chart Specifications The scale reads from 1 to 14: 1 - three indicates a totally acidic substance 4 - 6 indicates an acidic substance 7 indicates neutral eight - 11 signifies alkalinity 12 - 14 indicates a very high level of alkalinity Package Included 1 x books containing 80 strips (80 strips in total)

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