- pH measuring equipment must be cleaned and calibrated regularly to ensure they are giving the user accurate readings.
- pH instruments are calibrated to pH 7.0 first then to pH 4.0.
- The 2.77EC Conductivity solution is used as a reference or checking solution to ensure you have adequately cleaned the EC/CF probe.
- Calibration Solutions should be stored in a cool place out of direct sun and heat.
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