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How to Make to pH Calibration Solution?
1. Dissolve 7.00 pH powder with 250 mL of 77℉(25.0℃) Pure water; 2. Stir until the powder completely dissoved; 3. Get 250mL pH calibration solution;
Uncontaminated calibration solution can be sealed for 30-60 days
If your pH meter does not have a Temperature Compensation Function, please use 250mL of 77℉(25.0℃) pure water to dissolve the powder; All YINMIK pH meters with temperature compensation function, so you don’t have to worry about the temperature of the pure water.
MrDiY614
Reviewed in the United States on August 23, 2024
Purchased these for calibrating my ph meter and they worked just like they say. You mix each of the powders in their own container of water then you dip your ph meter in the solution and your meter will be calibrated to the value of the powder. Once you do it 3 times once in each of the solutions your ph meter should be calibrated and ready for use. You get 3 different powders and 5 packets of each one so you have more for later down the road when your meter needs calibrated again you will be set and ready to go making this a great value for the money. Seems to be pretty accurate I have tested with multiple meters and they are are very similar. Each packet is sealed separately so it's easy to store until your next use. I am happy with my purchase and will buy again when I run out of my supply. Thank you and have a blessed day!
John A.
Reviewed in the United States on May 26, 2024
Always a good idea to calibrate a pH meter.
Susie
Reviewed in the United States on November 9, 2024
To hard to use
Nick
Reviewed in the United States on November 6, 2024
Good value
Customer
Reviewed in the United States on January 19, 2024
Easy to use, straight forward,
Nancy Ransom
Reviewed in the United States on September 29, 2023
Great for the price. Handy packets to have if you need to recalibrate the reader. As described, as some other have noted the lower reading sometimes does not read correctly. Overall these are a great way to check the meter.
DWD
Reviewed in the United States on December 3, 2023
used to calibrate pH meter. Accurate; checked with three different meters
Customer
Reviewed in the United States on November 25, 2023
I'll get a good use out of that I had a AeroGarden and and it worked good but that's a bigger one so I can plant more plants and I really like it
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