pH 6.86 Buffer Standard Solution, used to calibrate pH meters and ensure accurate pH measurements in laboratories and industrial processes. This specific buffer provides a stable reference at pH 6.86 (typically at 25°C), commonly applied in quality control, environmental monitoring, pharmaceutical production, and research settings where precise pH values are critical. It offers a reliable reference point for maintaining consistency and accuracy in analytical testing, especially for neutral to slightly acidic ranges. Also used in routine maintenance of pH sensors and validation of measurement systems.