{"id":1664,"count":25,"description":"

pH buffer solution for calibrating pH probe and pH meter<\/h2>

pH buffer solution, also known as pH calibration solution, is the solution you use to calibrate a pH probe<\/a> or pH meter<\/a>. Without fresh calibration solution, the pH meter or pH probe does not know where the exact measuring point is, because over time they lose their setpoint due to degradation of the reference solutions in the meter and electrode, with the result that your pH is dosed incorrectly.<\/p>

Meytec has pH 4 buffer solution<\/a>, pH 7 buffer solution<\/a>, pH 10 buffer solution<\/a> and pH 9, plus pH 6.86 and pH 9.18 for meters, probes and systems that ask for calibration at 4.01, 6.86 and 9.18. Every lot comes with a certificate of analysis. You choose 250 ml, 60 ml or 20 ml.<\/p>

Which pH value you need<\/h2>

If your device calibrates at 4.01, 7.00 and 10.01, start with pH 7 and finish with pH 4 or pH 10. If it asks for calibration at 4.01, 6.86 and 9.18, then pH 6.86 is the neutral point instead of pH 7. Read and follow the manual of your pH meter or pH probe for a reliable calibration and a correct pH measurement.<\/p>

Swimming pool<\/h3>

In the swimming pool, a correct pH value is important for pleasant water quality. If it is too low or too high, it can irritate the eyes or skin and your chlorine works less well. That is why you should calibrate the pH meter or pH probe regularly. Whether you calibrate at 1, 2 or 3 points is stated in the manual of your pH meter or dosing system. pH 9.00 is often used as a third calibration point instead of pH 10.01 or pH 9.18.<\/p>

Hydroponics and growing<\/h3>

In hydroponics, nutrient uptake and plant health depend on an exact pH level. You measure and control that pH to maximise growth and yield. Only a calibrated pH meter or pH probe measures the correct pH. The most commonly used pH buffer solutions here are pH 7.00 and pH 4.01.<\/p>

Laboratory and research<\/h3>

In the laboratory, a pH measurement must be consistent and recalibration takes place daily (or even before every measurement), because even the smallest deviation can have a big impact. Here a 3-point calibration usually applies for the highest possible accuracy. The most commonly used pH buffer solutions in this sector are pH 7, pH 4 and pH 10.<\/p>

Food and drink<\/h3>

In food production and in brewing drinks such as beer and wine, the pH is monitored continuously. This has a direct impact on taste, shelf life and fermentation. A well-calibrated pH meter or pH probe is the basis of production.<\/p>

Water treatment and industry<\/h3>

In water treatment, the pH controls the dosing and the quality of the water that you discharge, treat or reuse. A wrong measurement gives a wrong dosage. pH electrodes in water treatment are continuously monitored and calibrated.<\/p>

Aquarium<\/h3>

In the aquarium, your fish need a stable pH balance. A wrong pH value causes stress and can endanger their health. That is why you should always calibrate your aquarium pH probe and your pH meter regularly.<\/p>

pH buffer solution for hydroponics in one set<\/h2>

For hydroponics you usually use pH 7.00 and pH 4.01. Both are in the set pH 4 and pH 7 in sachets<\/a>, with 10 sachets of 20 ml per value.<\/p>

Calibrating pH and ORP together<\/h2>

If you also calibrate the ORP probe, choose the buffer solution set pH 4, pH 7 and 475 mV<\/a> or the buffer solution set pH 7, pH 10 and 475 mV<\/a>. These also contain KCl storage solution and cleaning solution, each in a 60 ml bottle. Only need pH 7 and pH 10? Choose the set pH 7 and pH 10 in sachets<\/a>.<\/p>

How do you calibrate correctly?<\/h2>