StablCal turbidity standards are USEPA accepted for calibration purposes. The StablCal pre mixed stabilized Formazin turbidity standards are true Formazin dilutions developed for use in any turbidimeter. StablCal standards have precise concentrations as low as 0.060 NTU for conventional turbidimeters. Shelf life is guaranteed for two years from the date of manufacture. These standards are safe to handle in the lab. No special glassware or difficult lab techniques are required for the tests. Its enhanced stability saves time and labor.; Platform: Solution; Parameter: ; Concentration: 1000 NTU; Precise, Pre-mixed Formazin Solutions; Enhanced Stability Saves Time and Labor; Confidence in results