Stablcal Stabilised Formazine Turbidity Standard, 20 NTU, 100 mL
Ready for use, stabilised true Formazine Primary standard solution, 20 NTU, 100 mL bottle. Suited for all turbidimeters. USEPA accepted for calibration purposes. For TL23, TU52, 2100Q, 2100N, 2100AN series.


















