SOP on Cleaning of Sampling Aids
- OBJECTIVE :
- To lay down a procedure for cleaning of Sampling Aids.
- RESPONSIBILITY :
- Officer – Quality Quality Assurance to implement the procedure.
- Head – Quality Quality Assurance to ensure compliance.
- PROCEDURE :
- Preparation of Detergent solution (2% Extran MA 02 Neutral, solution).
- To about 980 mL of potable water in plastic beaker add about 20ml of Extran and mix thoroughly.
- Preparation of 70% Isopropyl alcohol:
- About 300 mL of purified water add about 700ml of Isopropyl alcohol and mix thoroughly.
- Procedure for Spoons & Funnels:
- Scrub the spoons/funnels with a nylon brush using detergent solution, until the visible stains, if any is removed.
- Thoroughly wash with potable water to remove any residues of detergent.
- Finally rinse with purified water.
- Dry the spoons/funnels in hot air oven for about 1 hour and cool to room temperature.
- After completion of drying, wrap the spoons/funnels in polybags and label as cleaned
- sampling aids and keep them in respective drawer.
- Procedure for Large Volume Sampling Thieves.
- Separate the inner and outer tubes of the sampler.
- Dry wipe any powder sticking to the tubes with a clean lint free cloth.
- Wash the inner and outer tubes with potable water to remove any residues.
- Scrub the outer and inner tubes with about 0.5 ltr. of Detergent solution, using a long handled nylon brush.
- Remove any residues of powder sticked at the corners of the partitions in the inner tube using a nylon brush.
- Thoroughly wash the inner and outer tubes with ample amount of potable water to remove the detergent residues.
- Rinse the inner and outer tubes with about a litre of Purified water.
- Wipe dry the tubes with clean lint free cloth.
- Wipe the tubes with 70 % Isopropyl alcohol solution, and allow to dry
- preferably in a hot air oven.
- Inspect visually for any residues, if any residues observed repeat the cleaning.
- After drying label as cleaned sampling aids and keep them in respective place.
- Procedure for liquid samplers :
- Dip the glass apparatus in the cleaning solution. Soak for about 1 hour in cleaning solution and remove from it.
- Take potable water upto half of the capacity and rinse by inverting and shake several times and discard the solution. Rinse with potable water for four more times.
- Finally rinse with purified water two times and keep them in tray allowing it to dry.
- Procedure for Sampling bottles :
- The sampling bottles and caps shall be soaked in potable water. take them out.
- Shake for several times by capping the bottles.
- Rinse the bottles and caps twice with purified water.
- Dry the cleaned bottles in hot air oven at 105°C for about 1 hour.
- Mop the caps with 70% IPA solution and allow them to dry keeping separately in a tray.
- Once cleaning is complete, cap the bottles and place them near the sampling station in the respective container labelled for the purpose.
- Note :
- Only unused bottles shall be used for sampling. Once used, the sampling bottles shall not be reused for sampling activity.
- Only sterilised bottles shall be used for microbiology samples.
- Micro sampling shall be done prior to any other sampling.
- Forms and Records (Annexures)
- Not Applicable
- Distribution
- Master copy – Quality Assurance
- Controlled copies- Quality Assurance, Production, Quality Control.engineering
- History
Date Revision Number Reason for Revision – 00 New SOP
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