Aqua Master Tools buffer Solution pH 4.01 mS/cm 100 ml

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  • Calibration solution with a pre-set pH value of 4.01
  • Traceable to NIST standards for highest accuracy
  • Ideal for calibrating pH meters
  • Essential for accurate measurement of the pH value of nutrient solutions
  • Easy to use and long-lasting
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pufferlösung ph 4
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Using pH 4.01 Buffer Solution in Hydroponic Plant Cultivation

Hydroponic plant cultivation is a modern technique for growing plants without soil. A properly adjusted nutrient solution is crucial for the growth of your plants. This is where the pH 4.01 buffer solution comes into play.

What Is pH 4.01 Buffer Solution?

The pH 4.01 buffer solution is a calibration fluid used for pH probe calibration. This fluid has a pH value of 4.01 (at 25 °C) and is traceable to the NIST standard (National Institute of Standards and Technology). It's important to store the fluid at a temperature between 15-25 °C and to immediately seal the bottle after use.

  • 0 °C: pH 4.01
  • 5 °C: pH 4.00
  • 10 °C: pH 4.00
  • 15 °C: pH 4.00
  • 20 °C: pH 4.00
  • 25 °C: pH 4.01
  • 30 °C: pH 4.01
  • 35 °C: pH 4.02
  • 40 °C: pH 4.03
  • 45 °C: pH 4.05
  • 50 °C: pH 4.06
  • 60  °C: pH 4.10

How Is It Used?

The pH 4.01 buffer solution is used to check and recalibrate the accuracy of your pH meter. A small amount of pH 4.01 buffer solution is placed in a test tube, and then the pH probe is immersed in it. The pH meter can then be calibrated to obtain accurate measurements. It's important to note that the fluid should not be poured back into the bottle to avoid altering the pH of the remaining fluid.

How Important Is pH in Hydroponic Plant Cultivation?

In hydroponic plant cultivation, it's essential for the nutrient solution to have the correct pH value as it enables plants to absorb nutrients. If the pH value is too high or too low, plants may not absorb enough nutrients, leading to poor growth and weakened plants. Therefore, it's essential to regularly check the pH value and adjust it if necessary using acids or bases.


The pH 4.01 buffer solution is a crucial component in hydroponic plant cultivation. It is used to verify the accuracy of your pH meter (such as the P50 Pro pH meter by Aqua Master Tools) and ensures accurate measurement of the pH value of the nutrient solution.

Included in the Package:

  • 1x pH 4.01 Buffer Solution, 100 ml
Manufacturer: Aqua Master Tools
SKU: am-024
GTIN: 7061118094162
Geeignet für‍: Home GrowIndoor Grow
Shipping weight‍: 0,12 kg
Item weight‍: 0,10 kg
Content‍: 100,00 ml



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