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 25oC (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
QCEB	Quality control equipment calibration
F	Format
cps	Centipoise
oC	Degree centigrade
%	Percentage