High quality of materials.
Take a piece of test paper and extract one drop of solution that need to test on the paper,wait for color changed.
Compared with reference ph value color and get the ph value of tested solution.
Do not soaking the test paper into solution directly.
Not fit for solution which is super weak acid and concentration under 0.01%.
Store on dry and dark place.
When testing makeup,ph value is better between 5 and 6.
When testing water of washing clothes,ph value is better on 7.
80 pcs of test paper only,other accessories demo in the picture are not included!
PH Value: 1-14
Expiration Date: 3 Years
Color: As pictures shown
Size: 7cmx5cm (2.76inx1.97in)
Quantity: 80 Pcs
Note:1.Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid.
2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!
Package includes(without retail package):
80pcs x Test Paper