
COD Calibration Standard Solution 10ppm – 20,000ppm (KHP), 1L
High-quality COD Calibration Standard Solution with Potassium Hydrogen Phthalate (KHP), providing a concentration range from 10 ppm to 20,000 ppm. Ideal for accurate calibration of

High-quality COD Calibration Standard Solution with Potassium Hydrogen Phthalate (KHP), providing a concentration range from 10 ppm to 20,000 ppm. Ideal for accurate calibration of
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