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  • Bluelab pH 4.0 Calibration Solution, 20 ml Sachets - Pachamama Indoor Farming Culture
Bluelab
PH420

Bluelab pH 4.0 Calibration Solution, 20 ml Sachets

pH measuring equipment must be cleaned and calibrated regularly to ensure they are giving the user accurate readings. pH instruments are calibrated to pH7.0 first (buffer) then to pH4.0 (slope). Bluelab's EC/CF equipment does not need calibrating as they are all factory calibrated. The CF27.7 (EC2.77) solution is used as a reference or checking solution to ensure you have adequately cleaned the EC/CF probe.

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