LuckyStore 6pcs 80 Strip Full Range pH Alkaline Acid 1-14 Test Paper Water Litmus Testing Kit
Description:The scale reads from 1 to 14:1 - 3 indicates a very acidic substance4 - 6 indicates an acidic substance7 indicates neutral8 - 11 indicates alkalinity12 - 14 indicates a very high level of alkalinityPH 1-14 color chart in each packThe test strip color changes must be matched with the pH scale color chart within about 15 secondsPaper Size:app 45mm x 7mm (L x W)Weigh:app 3g