Bluelab pH 4.0 Calibration Solution - 250 mL is an essential part of a grower's toolbox because it is required for the calibration of pH meters, pH monitors and controllers. This solution is manufactured specific to the calibration process and referenced to high laboratory standards by Bluelab. Regular cleaning and calibrating of pH measuring equipment ensures accurate readings. pH instruments are calibrated to pH 7.0 first (buffer) then to pH 4.0 (slope). Bluelab Calibration Solution should be stored in a cool place out of direct sun and heat. It should be stored with the lids securely tightened.

Features

• An essential part of a grower's toolbox
• Required for the calibration of pH meters, pH monitors & controllers
• Manufactured specific to the calibration process & referenced to high laboratory standards by Bluelab
• Store in a cool place out of direct sun
• 250 mL