Bluelab PH Calibration Solution pH 4 Size:pH 4.0 250ml carbon-lined bags

carbon-lined bags

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The Cultiv8 Mechanical Timer is a dependable and simple tool for monitoring and regulating your hydroponics equipment

Bluelab PH Calibration Solution pH 4 Size:pH 4.0 250ml carbon-lined bagsBluelab PH Calibration Solution pH 4 250mL 500mL pH instruments must be cleaned and calibrated at least monthly to provide you with the most accurate reading. pH measuring equipment is calibrated to pH 7. 0 first (buffer) then to pH 4. 0 (slope). Essential for use with all Bluelab pH products for the calibration of Bluelab pH Probes. To ensure solutions remain accurate: Avoid cross contamination Decanter into a smaller plastic cup Discard sample after