pH Calibration Powder 3 Pack

3 packs of pH buffer calibration powder, each packet will produce 250ml of solution.

Used for the recalibration of pH meters, accurate to 0.01 pH 

Set Includes 

1 x pH 7.0 pH calibration powder
1 x pH 9.18 pH calibration powder
1 x pH 10.01 pH calibration powder