Specification:
Type: PH test paper
Range: 1-14& 5.5-9.0
Scope of application: suitable for all kinds of testing, laboratory / cosmetic testing / drinking water / saliva / urine, etc.

Different pH content discoloration range is different, by comparing the color card ratio: the smaller the number, the stronger the acidity, the larger the value, the stronger the alkalinity.
Instructions:
1. Tear the film and open the PH test paper;
2. Tear off a PH test paper;
3. Dip the other end of the test paper or apply a small amount of solution through a straw to one end of the test tube;
4. After about 3 seconds, color changes will occur in the stained part, i.e. comparing with the color card or reading the value.

Package includes:
1pcs PH 1-14 test paper
1pcs PH 5.5-9.0 test paper