21. In Ph Calibration,calibration Is Done For Ph Meter Or Electrode?how Will You Judge That The Meter To Be Calibrated With 4,7,9.2 Buffers?explain Temperature Effects On Ph?
calibration is also one of the system suitability test,whether the system working satisfactory or not physically so when you do the calibration for pH meter with standard pH buffer solution (which is from NIST-it may accurate solution for actual pH)and once if your instrument has calibrated,you can cross verify your insrument against those pH buffer solution (NIST) and the acceptable range is +/- 0.02 then you can conclude for. once if temperature raises the pH will decrease and its not all cases.
