General
pH value	9,00

The Pufferkonzentrat pH 9 125 mL 10-mal zu verdünnen from Chauvin Arnoux is a concentrated pH buffer solution specifically developed for calibration purposes in measurement technology. The solution serves as a reference standard for checking and adjusting pH measuring devices and probes. The bottle contains 125 mL of concentrate, which must be diluted ten times before use to ensure precise calibration at a pH value of 9.00. This buffer solution is an essential component of maintenance and quality assurance in laboratory and industrial applications where precise pH values are critical.

Buffer concentrate
This product is designed as a concentrate to enable long shelf life and compact packaging. Dilution is achieved by mixing with distilled or deionized water in a 1:10 ratio, resulting in the final calibration solution with a pH value of 9.00. This concentration is suitable for calibrating pH measuring devices in the alkaline range, where high stability and reproducibility of measurements are required.

pH calibration
pH calibration is a critical step in validating the accuracy of pH measurement systems. The buffer solution with a defined value of 9.00 enables precise calibration, particularly in applications where the pH range exceeds 7. Using a standardized buffer solution ensures that measurement results are comparable between different devices and measurement sites.

Dilution process
Dilution is performed by mixing 1 part concentrate with 9 parts water, equivalent to a 1:10 ratio. This process must be carried out under clean conditions to avoid contamination that could affect the accuracy of the calibration solution. Dilution should be done immediately before use to ensure solution stability.

The buffer solution is packaged in a 125-mL bottle designed for safe transport and storage. The bottle size provides sufficient concentrate for multiple dilutions, supporting cost-efficiency and practical use in laboratories or production environments.

Application areas
The buffer solution is used in laboratories, the food industry, chemical production, and environmental analysis, where precise pH measurements are required. It serves as a reference point for calibrating pH measuring devices to ensure correct device function and reliable results.

Compatibility and accessories
The buffer solution is compatible with all pH measuring devices that support calibration at pH 9.00. It can be used with standard pH probes and electrodes suitable for use in alkaline solutions. The use of distilled or deionized water for dilution is recommended to ensure the purity of the calibration solution.

Storage and shelf life
The buffer solution should be stored in a cool, dry, and dark place to maintain the stability of the concentrate. The bottle is designed to protect the solution from light and moisture. The shelf life of the concentrate depends on storage conditions; however, dilution immediately before use is recommended to maximize accuracy.

Operational advantages
Using a concentrated buffer solution offers the advantage of longer shelf life and more compact packaging compared to pre-diluted solutions. The requirement to dilute immediately before use ensures the calibration solution remains fresh and stable, enhancing the reliability of measurement results. Clear labeling of the pH value (9.00) and dilution instructions (10-fold) simplifies handling and reduces potential errors during calibration.

Practical application
In practice, the buffer solution is used for calibrating pH measuring devices, especially in applications where the pH value exceeds 7. Using a standardized solution ensures high reproducibility of measurement results. The 10-fold dilution allows flexible use, as the amount of concentrate can be adjusted according to requirements.