2. Description:
* High accuracy pH test paper, pH range from 1-14
* pH 1-14 color chart in each pack
* There is a strong correlation between the pH of the body''s internal environment and pH paper help you to maintain good healthy body by testing many usual everyday substances, including moisturized soap, lemon juice, milk, liquid detergent, moisturized soil, saliva, urine, sweat...etc.
* The test strip color changes must be matched with the pH scale color chart within about 15 seconds.
Universal pH 1-14 is not only suitable for a variety of industrial, agriculture and other fields such as environment, technology analysis, but also very applicable to all levels of pre-analysis laboratory.
Note: CAN NOT indicate the Acid or alkali solution when its density was lower than 0.01% .