Calibration and validation ,difference , ph meter and weigh balance calibration SOPs

Calibration and validation , ph meter and weigh balance calibration SOPs procedure with difference and frequency of doing this hope this will be helpful for you... also comment if needed

1. Calibration and Validation Divy M. patel

2. . Calibration In measurement technology and metrology, calibration is the comparison of measurement values delivered by a device under test with those of a calibration standard of known accuracy.

3. validation Validation is the process of establishing documentary evidence demonstrating that a procedure, process, or activity carried out in testing and then production maintains the desired level of compliance at all stages

4. Difference between both Calibration ensures that instrument or measuring devices producing accurate results. Validation provides documented evidence that a process, equipment, method or system produces consistent results (in other words, it ensures that uniforms batches are produced)

5. PH meter calibration pH meter calibration is a necessary step of using a pH meter because of how the electrode changes over time. Your pH electrode is designed to measure pH based off of slope and offset (the Nernst Equation) All pH meters require calibration and should be calibrated anywhere from before every use to at least once a month.

6. procedure Calibrating Your pH Meter. Place your electrode in the buffer with a pH value of 7 and begin reading. Press the “measure” or calibrate button to begin reading the pH once your electrode is placed in the buffer. Allow the pH reading to stabilize before letting it sit for approximately 1-2 minutes.

7. Calibration of weighing balance Calibration is crucial to increasing a weighing scale or balance's longevity. It is also a necessary process to ensure valid data during rigorous testing. Calibration of the reference weights is performed every two years by an ISO 17025 accredited vendor. Internal calibration daily , and predcision once a month

8. procedure Place 5 gm of weighing pan Note the weight Calculate the weight difference Repeat the above steps using 50 gm and 100 gm Record the weight by noting down in form And for precision place 5 gm pan and repeat this 9 times And note the results.

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