SOP for Calibration of Refractometer : Pharmaceutical Guidelines

SOP for Calibration of Refractometer

Standard operating procedure to evaluate the performance of Refractometer using Distilled water, Carbon tetrachloride and Toluene .

1.0 OBJECTIVE

To calibrate the equipment for Confirmation of reliable and accurate results.

2.0 SCOPE

This procedure is applicable to calibrate the refractometer, installed in the quality control department.

3.0 RESPONSIBILITY

3.1 Doing: Technical Assistant
3.2 Checking: Executive /Manager

4.0 ACCOUNTABILITY

Head of the Department

5.0 PROCEDURE

Frequency: Once in three months.
5.1 Operate the instrument as per S.O.P.
5.2 Maintain the required temperature of the particular liquid as mentioned in Annexure-I
5.3 Observe and record Refractive index of the different liquid at temperature mentioned in Annexure-I.
5.4 The performance of the instrument is satisfactory if the observed Refractive index is within the limits given in Annexure, otherwise, follow the S.O.P.

6.0 ABBREVIATION

6.1 SOP - Standard Operating Procedure

ANNEXURE-I
QUALITY CONTROL LABORATORY

CALIBRATION REPORT OF REFRACTOMETER                
CALIBRATION DATE
DATE OF LAST CALIBRATION DONE
NEXT DUE FOR CALIBRATION

INSTRUMENT DETAILS
INSTRUMENT NAME
INSTRUMENT MAKE
INSTRUMENT
IDENTIFICATION NO.


OBSERVATION

SR.NO.
LIQUID
TEMPERATURE
OBSERVED REFRACTIVE INDEX
LIMIT
01
DISTILLED WATER
20°C
1.330+0.0001
02
CARBON TETRACHLORIDE (AR GRADE)
20°C
1.459 to 1.461
03
TOLUENE (AR GRADE)
20°C
1.495 to 1.497

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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.
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