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SOP for Collection of Swab Sample


Standard operating procedure to collect the swab samples from the surfaces of equipment and floor for microbial and chemical analysis.

1.0  OBJECTIVE:

       To lay down the procedure for collection of swab samples from surfaces of equipment and floor.

2.0  SCOPE:

       This SOP shall be applicable to all the operational areas which are in direct contact with product.

3.0  RESPONSIBILITY:

       Microbiologist

4.0  ACCOUNTABILITY:

       Sr. Manager Quality Assurance

5.0  PROCEDURE:

5.1  Collection of swab sample for microbiological analysis :

5.1.1  Take about 2 gms of absorbent cotton and wrap it around one edge of a glass rod.
5.1.2  Transfer this swab into a graduated, stoppered test tube, containing 5 ml of distilled water.
5.1.3  Sterilize by autoclaving at 15 lbs pressure (121°C) for 15 minutes.
5.1.4  Take the sterilized swab to the sampling area.
5.1.5  Take out the swab from the test tube and swab the surface of the equipment/floor, covering an area of 10 x 10 sq. cms, in unidirectional movements and not to and fro movements.
5.1.6  After swabbing, place the swab in another sterile test tube containing 10 ml of sterile buffered peptone water.
5.1.7  Shake the tube gently and let it stand for 15 minutes.
5.1.8  Remove the swab from the test tube and analyze the peptone water as per the specifications.

5.2  Collection of swab sample for chemical analysis :

5.2.1  Take about 2 gms of absorbent cotton and wrap it around one edge of a glass rod.
5.2.2  Transfer this swab into a clean, graduated, stopper test tube, containing 5 ml of distilled water.
5.2.3  Take the swab to the sampling area.
5.2.4  Take out the swab from the test tube and swab the surface of the equipment, covering an area of 10 x 10 sq. cms, in unidirectional movements and not to and fro movements.
5.2.5  After swabbing, place the swab in another test tube containing 10 ml Acetate Buffer pH 4.0.
5.2.6  Sonicate the contents of the tube for 15 minutes
5.2.7  Transfer the contents to a 100 ml volumetric flask and make up the volume to 100 ml with Acetate Buffer pH 4.0.
5.2.8  Analyze this solution as per the specifications.

6.0  ABBREVIATIONS

6.1  SOP : Standard operating procedure
6.2  QA : Quality assurance
6.3  QC : Quality control
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


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