The THRD1000-100ML Hardness Calibration Standard is a high-accuracy reference solution used to verify and calibrate hardness testing instruments. Supplied in a 100ml ready-to-use format, this...
The THRD1000-500ML Hardness Calibration Standard is a high-precision reference solution designed for verifying and calibrating hardness testing instruments. Supplied in a 500ml ready-to-use format,...
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...