Review on ๐งช Set of 15 PH Calibration Buffer Solution Powder Packs for Accurate pH Meter Calibration - Make 250ml of 4.00pH, 6.86pH, and 9.18pH Solutions to Calibrate Your PH Tester by Peter Sullivan
Not received what was described
Not only were there only 13 bags in the box, the 4.00 solution was 4.01, even though it says so on the outside of the box. Even if the difference of 0.01 is minimal, I cannot trust any other accuracy of the rest of the products.
- LONG TERM USE. Save time and money by mixing powder in a glass with distilled water. This way you can keep them longer and more accessible without the need for additional packages!
- No automatic
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