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250 ml bottle of BlueLab Ph 4.0 Calibration Solution.
Bluelab® pH 4.0 calibration solution is a product specifically designed to calibrate Bluelab brand pH measuring instruments. It is a reference solution that allows you to verify and adjust the accuracy of pH meters and probes, ensuring precise and reliable measurements in the future.
The Bluelab® pH 4.0 calibration solution meets laboratory standards and guarantees the quality and accuracy of the brand's products. By regularly calibrating your pH meters and probes with this solution, you will be able to maintain the reliability and durability of your instruments, resulting in more precise and reliable measurements over time. It is an essential tool for those seeking proper care and optimal performance from their pH measuring equipment.

The Bluelab pH 4.0 calibration solution, like other quality calibration solutions, is standardized and manufactured following established formulas. This ensures accuracy and reliability of the measurements. Careful handling and good cleaning of the probe or electrode are essential to obtain accurate and reliable results in pH measurements.
Preparation: Before using the pH 4.0 calibration solution, make sure that the pH probe or meter is clean and in good condition. Clean the probe with distilled water if necessary and make sure it has no residue or contaminants.
Agitation: Shake the bottle of the pH 4.0 calibration solution well before use to ensure a homogeneous mixture.
Calibration: Immerse the pH probe or meter in the pH 4.0 calibration solution and wait a few seconds until the reading stabilizes. Adjust the calibration of the device so that it reads exactly 4.0 on the display. Check your device's manual to find out how to make this adjustment.
Verification: After calibrating with the pH 4.0 solution, it is also advisable to perform an additional calibration with a pH 7.0 calibration solution to verify the accuracy of the meter at a midpoint.
Storage: Make sure to close the bottle of the pH 4.0 calibration solution tightly and store it in a cool, dark place to maintain its quality.
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