How do you calibrate the Friability Apparatus or Friability Tester or Friabilitor?
Calibration Procedure of friability test apparatus as follow,
- Calibration will be performed on Time mode and Count mode of the friability Tester or friabilitor.
A. Calibration by Time mode:
- Set the time by selecting the Time mode and setting the time to 1 minute.
- Then start the apparatus and check the No. of Revolutions in 1 minute.
- Repeat the test by setting the time for 2 minutes, 4 minutes and check the No. of Revolutions in 2 minutes, 4 minutes and record the result.
- Each test is to be performed in triplicate.
Acceptance criteria:
- 24 to 26 rotations in 1 minute.
- 48 to 52 rotations in 2 minutes.
- 96 to 104 rotations in 4 minutes.
B. Calibration by Count mode:
- Set the count by selecting count mode and set the count to 25 revolutions.
- Start the apparatus and check the time with the help of a stopwatch complete 25
- Repeat the test by setting the count to 50 revolutions, 100 revolutions, and checking the time with the help of a stopwatch to complete 50 revolutions, 100 revolutions, and record the result.
- Each test is to be performed in triplicate.
Acceptance criteria:
- 0:57 00 to 1:03 00 minutes for 25 rotations.
- 1:54 00 to 2:06 00 minutes for 50 rotations.
- 3:48 00 to 4:12 00 minutes for 100 rotations.
Calibration Frequency:
It should be calibrated on a six-monthly basis.
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