Stablcal Stabilised Formazine Turbidity Standard, 20 NTU, 1000 mL

Stablcal Turbidity Standard for all Turbidimeters. USEPA accepted for calibration purposes. Stablcal Stabilised Formazin Turbidity Standards are true Formazin dilutions developed for use in any turbidimeter. NTU Value: 20.0. Bottle: 1000 mL (1 L).