Pavlin
Active Member
I found the following information: Gettin PH-7.0 solution put 5 ml. in court and thenwash with distilled water meter and fuse it to the court with 5 ml. solution and turn in a circle about 10 seconds. then put it in a large solution of 7.0 and calibrated. Afterwashing with distilled water again repeat it the same with a solution of 4.0 ml. Andfinally mete PH of water which pour.