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![]() 26601-49 StablCal® Turbidity Standard, 20 NTU, 500 mL ![]() StablCal® Turbidity Standard for all Turbidimeters. USEPA accepted for calibration purposes. StablCal® Stabilized Formazin Turbidity Standards are true Formazin dilutions developed for use in any turbidimeter. NTU Value: 20. Bottle: 500 mL.
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