Turbidity Standards

Hach brand turbidity standards are precision-manufactured reference solutions with certified turbidity values expressed in Nephelometric Turbidity Units (NTU), designed to calibrate and verify the accuracy of turbidimeters and nephelometers used in laboratory water quality analysis. These traceable standards are available in various concentration ranges from low-level (0.1-10 NTU) to high-level (100-4000 NTU) formulations, providing reliable benchmarks for instrument calibration and quality control procedures in compliance with EPA Method 180.1 and Standard Methods 2130B for turbidity measurement.