Boboshop Set of 80pcs pH test paper brand new and high quality

Features:
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
Paper Size:59mm x 8mm
Instruction:
1.Simply press the testing strip to the object or liquid you are testing. Half second later,
take out the paper and using the color chart included, compare the color change of the paper
to find out the acidity level of your testing subject.
2.Can not indicate the Acid or alkali solution when its density was lower than 0.01%.
3.Keep dry for the rest paper
Specification:
Item size: 70*44*4mm
Net weight: 8g
Packaging weight: 17g
Color:As the picture shows
Packing Content:
1 x Set of 80pcs pH test paper