Do not wipe the pH probe or else it will generate static and affect future readings from the probe.
Deionized or distilled water will also work for rinsing the probe.
Do not stir the probe since it may hit the sides of the beaker and break.
Stiff bristles will be more abrasive and could damage the reference area of the probe.
Distilled or deionized water can also be used to rinse the probe.
Use caution when you work with hydrochloric acid since it is corrosive. Wear protective gear, like an eye shield, lab coat, and gloves. Dab the end of the probe dry with a chem wipe after you rinse it.
Ether and carbon tetrachloride are 2 examples of organic solvents. Detergent should clear up oil contamination, but solvents will give you a deeper clean.
The calibration is fine if the reading is +/- . 05 after you standardize the meter.
Blot the probe dry to ensure all the previous solution is removed. Tap water could carry contaminants and should not be used to rinse in between tests.
You can skip the 7. 0 buffer solution if you want, but including it will give you more accurate reads in the future.
Do not store the probe in distilled water, deionized water, or tap water since this could contaminate it over time and it will have less accurate reads.
