Description
Hanna solutions are made based on established formulas and are standardized
with a pH meter calibrated with primary calibration solutions according to the NIST standard.
The 20 ml sachets are ideal for occasional calibrations.
Features:
- HI 70004 calibration fluid.
- Hanna Instruments.
- pH 4.01 µS/cm (µmho/cm) at 25 °C.
- Ideal for recalibrating EC meters.
- 20 ml.





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