General
Temperature condition	25 °C
Shelf life after opening	3 Monate

The REDOX buffer solution from Chauvin Arnoux is a ready-to-use calibration solution specifically designed for setting and checking metal electrodes in measurement applications. With a defined REDOX potential (ORP) of 220 mV at a temperature of 25 °C and a tolerance of ± 0.02, it ensures reproducible and precise measurement results. The solution is supplied in a 125-ml vial and is ready for immediate use, without requiring additional dilution or preparation. It is suitable for use in laboratories as well as in industrial applications where accurate determination of redox potential is required.

Applications
The buffer solution is primarily used for calibration and fine adjustment of metal electrodes employed in water analysis, process monitoring, or environmental measurement technology. The precise definition of the ORP value enables reliable calibration of measuring instruments to avoid systematic deviations. The solution is designed for users who require a stable and reproducible reference solution to ensure the accuracy of their measurement systems.

Functions and Equipment in Detail
The solution is packaged in a 125-ml vial, enabling easy handling and dosing. The term “ready-to-use” means no further preparation or dilution steps are required. The solution is designed for direct application to the electrode, with the exact temperature condition of 25 °C applying to the nominal voltage of 220 mV. The small deviation of ± 0.02 ensures high precision, which is critical for calibrated measurement systems.

Technology Explained Simply
The REDOX potential (ORP) is a measure of the oxidizing and reducing capacity of a solution. It is expressed in millivolts (mV) and serves as an indicator of the chemical activity in a liquid. The buffer solution provides a stable reference value that acts as a benchmark for calibration. The tolerance of ± 0.02 refers to the deviation of the measured potential from the target value under standard conditions. The solution is formulated to exhibit the exact value of 220 mV at 25 °C, which is relevant for most calibration processes in practice.

Compatibility and Accessories
The buffer solution is designed for use with metal electrodes used in pH and ORP measuring instruments. It is not specific to any particular device or brand, but serves as a general reference solution. It is used directly from the bottle, without requiring additional accessories such as filters, stirrers, or temperature chambers. Compatibility is based on chemical stability and the defined potential value, not on mechanical or electrical interfaces.

Mounting and Installation
The solution requires no mounting or installation. It is applied directly from the bottle to the electrode to be calibrated. Handling takes place under normal laboratory conditions, with a temperature of 25 °C recommended for accurate calibration. The bottle is designed to be opened and used without additional tools.

Operational Advantages
The solution offers a long shelf life of 24 months before opening, enabling planned use and storage. After opening, it remains stable and usable for 3 months, allowing flexible use across different work cycles. The direct readiness for use reduces preparation effort and increases efficiency during calibration. The precise definition of the ORP value ensures high reproducibility of measurement results, which is crucial for quality assurance in industrial and scientific applications.