Bluelab® pH 4.0 Calibration Solution 500ml propigation Mix 1-2ml per gallon of

Mix 1-2ml per gallon of water in a weekly mix

our scientists were hard at work with a mission: to give growers a consistent and precise way to feed their plants through every growth phase

organic acids

enzyme production and a multitude of important plant processes

They will now be rated at AHAM standards based on the recent US Department of Energy ruling

Bluelab® pH 4.0 Calibration Solution 500ml propigation Mix 1-2ml per gallon ofpH 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.