Feature:
Put a drop of the solution to be tested on the test paper strip, the solution will react with the paper strip, and then compare it with the color card to get the pH value.
The pH color chart intervals cover: 1 (very acidic), 2, 3, 4, 5, 6, 7 (neutral), 8, 9, 10, 11, 12, 13, 14 (very basic).
These pH Test Strips 1-14 Universal Full Range are made for comprehensive use for teaching, student experiments, chemistry labs, and personal health monitoring.
Specifications:
Material: paper
Size: about 2.76 x 1.77 inches/ 7 x 4.5 cm of each pack, each strip size is 1.97 x 0.39 inches/ 5 x 1 cm
Color: yellow
Package Include: 50 pack (4000 strips)
Warm notes:
Please do not put the paper strip directly into the solution. Medium, just use something to dip a drop into it.
This test paper is not suitable for very weak buffer solutions and acid and alkali solutions with a concentration lower than 0.01%.
The test strips need to be stored in a dark and dry place.
Please allow slight size error due to manual measurement.