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Bluelab pH Pen Buffer 7.0 Solution For Calibration 500ml
pH instruments must be cleaned and calibrated at least monthly to provide you with the most accurate readings
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. 500ml bottle
Bluelab solutions are manufactured specifically for Bluelab products are NIST certified and are made to a traceable standard to ensure your Bluelab products last longer and maintain accuracy.
Stock # 8423