Rotational Viscometer Calibration SOP

1.0 OBJECTIVE:

To lay down the calibration procedure of Viscometer.

2.0 SCOPE:

This shall be applicable to the Viscometer of Quality Control Laboratory.

3.0 RESPONSIBILITY:

3.1 Technical Assistant/ Helper.

3.2 Q.C Analyst.

4.0 ACCOUNTABILITY:

4.1 Manager-Quality Control.

5.0 MATERIAL AND EQUIPMENT:

5.1 Viscometer.

6.0 PROCEDURE:

6.1 Operate the instrument as per SOP.

6.2 Calibrate the instrument with standard viscosity solution 10, 100, 500, 5000, 12500 cps using respective spindles and record the results in annexure-1.

6.3 The performance of the instrument is satisfactory, if the measured viscosity is within the given tolerance limit, otherwise follow the SOP.

6.4 Frequency:

6.4.1 Once in three month.

7.0 REVISION LOG:

Revision No.	Effective Date	Reason
00		New SOP

8.0 REFERENCES:

8.1 Not Applicable.

9.0 ANNEXURES:

Annexure 1: Calibration record of Viscometer.

Annexure: 1

Calibration record of Viscometer

CALIBRATION RECORD OF VISCOMETER

Calibration date	Date of last calibration done	Next due for calibration

INSTRUMENT DETAILS:
Instrument name	Viscometer
Instrument make
Instrument identification no.
Frequency	Once in three month

Sr.#	Fluid of labeled viscosity in cps	Certified value in cps	Spindle	Speed factor at 25^oC (A)	Reading (B)	Viscosity in cps A x B	Acceptance criteria % Tolerance from certified viscosity
1.	10cps						±10%
2.	100cps						±7.5%
3.	500cps						±7.5%
4.	5000cps						±5.0%
5.	12500cps						±5.0%

Conclusion: Satisfactory/ Not satisfactory.

Calibrated by/date	Checked by/date

10.0 ABBREVIATIONS:

Abbreviation	Expanded Form
SOP	Standard operating procedure
&	And
No.	Number
Ltd.	Limited
Q.C	Quality control
Q.A	Quality assurance
QCE_B	Quality control equipment calibration
F	Format
cps	Centipoise
^oC	Degree centigrade
%	Percentage