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Calibration of Brookfield Viscometer


Learn how to verify the performance of Brookfield Viscometer using 5.00 cps, 50.00 cps and 5000.00 cps standards.

PROCEDURE:

Ensure that all the connections of the instrument are proper.
Turn the viscometer ON.
Take out the viscosity standard solutions in 500 ml beaker, adjust the temperature to 250C. Attach the required spindle, adjust required speed & measure the viscosity, note down the constant reading.
Viscosity standards, speeds, spindles required & tolerance limits are as follows:
Sr.
No.
Viscosity of standard in cps
Actual viscosity of standard in cps
Spindle No.
Entry Code
   RPM
Tolerance (in cps)
Minimum
Maximum
 1.
 5.00
4.70
 ULA
00
60
4.55
4.85
 2.
 50.00
 48.40
 LV1
61
60
46.9
49.9
 3.
5000.00
4820.00
LV3
63
 10
4651.83
4988.17

Acceptance criteria

Viscosity should be within the tolerance limits.
Do not transfer the viscosity solution to the original container back after use.

Precautions

Take due care to avoid any contamination of the standard solutions.
Avoid air bubble entrapment during transfer of standard solutions.

Frequency

Once in 6 months.
  

                                          QUALITY ASSURANCE DEPARTMENT
                              CALIBRATION REPORT OF BROOKFIELD VISCOMETER
Reference – 
Date -
Frequency - Once in 6 Months
Instrument No. -
Make – Brookfield Engineering Laboratories, Inc.
Model – LVDV-II + Pro
Take out the viscosity standard solutions in 500 ml beaker, adjust the temperature to 250C & attach the required spindle, adjust required speed & measure the viscosity, note down the constant reading.

Sr. No.
Viscosity Std. in CPS
Actual Viscosity of Std. in CPS
Observed Viscosity in CPS
Tolerance (in CPS)
Remark
(S / NS)

Minimum
Maximum

1
5.00
4.70
4.55
4.85

2
50.00
48.40
46.9
49.9

3
5000.00
4820.00
4651.83
4988.17

Conclusion : Calibration is satisfactory (S) / not satisfactory (NS).

Next Calibration Due On :

Done By :
Date :
Checked By :
Date :


Ankur Choudhary is India's first professional pharmaceutical blogger, author and founder of Pharmaceutical Guidelines, a widely-read pharmaceutical blog since 2008. Sign-up for the free email updates for your daily dose of pharmaceutical tips.
Email: .moc.enilediugamrahp@ofni Need Help: Ask Question


1 Comment so far : Add yours...

vineger said...

such a good procedure. It really help me to draft a standard calibration procedure for my organization.

tq for sharing

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