AMB1D5000 COD Calibration Solution, This high-precision 100 mL solution is crafted for calibrating chemical oxygen demand (COD) meters, ensuring they deliver accurate results crucial for monitoring environmental and industrial water quality. The solution’s 5000 ppm concentration guarantees that your COD meters function at their best, providing reliable data essential for managing wastewater treatment and environmental compliance. Compatible with all standard COD meters, this solution simplifies the calibration process, helping you maintain the accuracy of your water quality assessments with ease.