MRTURK REVHQ Litmus PH Test Strips 320 Strips, Professional Universal pH.1-14 Test Paper, for Teaching, Student, Chemistry Experiment, Saliva Urine Water Soil & Diet pH Monitoring

wanted 10, got a 100 for same price. works perfectly for my need

I liked the product. It does work and shows you alkaline and acidic liquids accurately. I used it multiple times in class. Quantity is also sufficient. I will surely rebuy it.

زين

Didn’t work

Suitable for PH testing of very alkaline or acidic water. It is not suitable for determining the exact PH. If, for example, you come to a new city and want to understand how hard water is in the water supply, it will do.

Does the job.

I bought them along with a digital PH tester to check the acidity of fermenting vegetables and I realize it is not really of any use. You can barely guess between 2 ph units (say between 4 and 6) and the color reference is pretty different from what the paper turns into. In turn they are only good for assessing very/moderate acidic - nearly neutral - very/moderate alkaline but not to guess a numeric value of the PH.

Nice idea but not accurately displaying the lower pH levels. I tested it on buffer solutions.