Aquasol AMB1D10000 COD Calibration Solution, This 100 mL solution is specifically designed for calibrating chemical oxygen demand (COD) meters, ensuring they deliver highly accurate and dependable measurements. With a potent concentration of 10,000 ppm, it sets a precise standard for calibrating high-range COD tests, critical for environmental labs, wastewater treatment facilities, and industrial processes. Compatible with all standard COD meters, this solution is essential for maintaining the stringent accuracy required for compliance and quality control in water quality management.