1Roll/5m laboratory ph indicator test strip 1-14 paper litmus alkaline-WY

Description

Specification:
Box material: plastic
Paper length: 5m / 16ft
Scale Reads From 1 to 14:
1 - 3 indicates a very acidic substance
4 - 6 indicates an acidic substance
7 indicates neutral
8 - 11 indicates alkalinity
12 - 14 indicates a very high level of alkalinity
PH 1-14 color chart in each pack
The test strip color changes must be matched with the pH scale color chart within about 15 seconds
Instruction:
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.
Can not indicate the Acid or alkali solution when its density was lower than 0.01%.
Keep dry for the rest paper.
Package Include:
1 pc x 5m pH Test Paper
Note:
1. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you!
2. Please allow 2-3% measuring deviation due to manual measurement.