





Essentials LAB Buffer 4
Essentials LAB Buffer 4 is a high-accuracy pH 4.0 calibration solution, ideal for reliable and consistent calibration of pH meters. Available in 250ml and 1L bottles, it's an essential product for growers and lab users who require accurate pH measurements.
Features
Highly accurate pH 4.0 solution
Ensures that your pH meter is reading correctly
Technical Specifications
Acidity level: pH 4
Available sizes: 250ml and 1L
Frequently Asked Questions
Q: When should I calibrate my pH meter, and why is it necessary?
A: The performance of a pH electrode changes over time due to aging and use. To ensure accurate readings, regular calibration is essential. If you're using your pH meter daily, you should calibrate it at least once a week.
Q: How do I use Essentials LAB Buffer 4 for calibration?
A: Ensure both your pH meter and the Buffer 4 solution are at similar temperatures by storing them in the same location before use. Shake the bottle before opening. Pour a small amount into a separate container for calibration and avoid inserting the probe directly into the bottle, as this can contaminate the solution. Discard the used solution after calibration and never pour it back into the bottle. For improved accuracy, perform a two-point calibration using Essentials LAB Buffer 7 alongside Buffer 4.
Q: How should I store Essentials LAB Buffer 4?
A: Keep the bottle upright with the cap tightly sealed to prevent evaporation or spills. Store at temperatures between 5°C and 25°C and avoid direct sunlight.
Available in 250ml and 1L bottles – ideal for both occasional and frequent calibration needs.
Original: $4.48
-65%$4.48
$1.57Product Information
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Description
Essentials LAB Buffer 4 is a high-accuracy pH 4.0 calibration solution, ideal for reliable and consistent calibration of pH meters. Available in 250ml and 1L bottles, it's an essential product for growers and lab users who require accurate pH measurements.
Features
Highly accurate pH 4.0 solution
Ensures that your pH meter is reading correctly
Technical Specifications
Acidity level: pH 4
Available sizes: 250ml and 1L
Frequently Asked Questions
Q: When should I calibrate my pH meter, and why is it necessary?
A: The performance of a pH electrode changes over time due to aging and use. To ensure accurate readings, regular calibration is essential. If you're using your pH meter daily, you should calibrate it at least once a week.
Q: How do I use Essentials LAB Buffer 4 for calibration?
A: Ensure both your pH meter and the Buffer 4 solution are at similar temperatures by storing them in the same location before use. Shake the bottle before opening. Pour a small amount into a separate container for calibration and avoid inserting the probe directly into the bottle, as this can contaminate the solution. Discard the used solution after calibration and never pour it back into the bottle. For improved accuracy, perform a two-point calibration using Essentials LAB Buffer 7 alongside Buffer 4.
Q: How should I store Essentials LAB Buffer 4?
A: Keep the bottle upright with the cap tightly sealed to prevent evaporation or spills. Store at temperatures between 5°C and 25°C and avoid direct sunlight.
Available in 250ml and 1L bottles – ideal for both occasional and frequent calibration needs.



















