1-14 pH Indicator Test Strips Laboratory Paper Litmus Tester Urine Saliva
High-concerned chemical. Model Number. Mainland China. With Backlight Or Not.
800X pH Indicator Test Strips 1-14 Laboratory Paper Litmus Tester Urine Saliva
You can use the paper for cooking, like checking the acidity of coffee or the alkalinity of tea. Match the color changed strip with the pH scale color chart within ~15 seconds. 8 – 11 : alkalinity. 12 – 14 : very high alkalinity.