Bluelab 7.0 pH Calibration Solution Soil Nutrients which may aid in the

which may aid in the uptake of micronutrients

so they become even more carb depleted

choking out all biological activity

Derived naturally from Soft Rock Phosphate and kelp

Bluelab 7.0 pH Calibration Solution Soil Nutrients which may aid in thepH 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 use Store in a cool dark place Store with lid