Saturday, August 15, 2009


To provide a procedure for cleaning and maintenance of Air curtain.
2.0 SCOPE:
Applicable to all the Air curtains installed in the unit.
Technicians/Engineers/Executives/Asst. Manager.
Head of Engineering.
6.1.0 Monthly maintenance activities :
6.1.1 Disconnect the power supply and put under maintenance board on air curtain.
6.1.2 CLEANING PROCEDURE Open the grills. Clean the impeller with Vacuum followed by moist duster. Lubricate the bush impeller. Fix the grills.
6.1.3 Check the motor connections, earthing connections and dress the wires if required.
6.1.4 Take trial run, Check for any abnormal noise or vibrations, rectify if any.
6.1.5 Remove the under maintenance board.
6.1.6 Record the observation in the format for preventive maintenance of air curtain.
SOP : ENGN : 003 : F1
6.2 Six monthly maintenance activities :
6.2.1 Check the Air velocity at four places below louvers at different distance towards floor.
6.2.2 Standard Air velocity limits of Air curtain at different distance are given below.
Distance From Air Curtain Louver Face/ Standard Air Velocity
2 Ft/7-9 (m/s)
4 Ft/5-7 (m/s)
6 Ft/3-5 (m/s)
8 Ft/2-5 (m/s)
6.2.3 Maintain the record of Air velocity

Sunday, August 2, 2009


1. Objective:

To lay down standard operating procedure for Dry heat sterilizer

2. Scope:

This procedure provides a detailed method of operation and handling of the Dry heat sterilizer.

3. Responsibility:

¯ Operator.

¯ Senior Chemist.

¯ Head - Production.

4. Procedure:

4.1. Make sure that Line clearance is duly checked and signed by QA Personal as per SOP No:P/P/051

4.2. Wash the SS Box and clean the chamber of the dry heat sterilizer with DM water.

4.3. Run the sterilizer for half an hour by keeping the damper open after the first cleaning, to takeout all settled dust from its.

4.4. Turn off the sterilizer to clean the chamber by DM water with Non-fiber releasing cloth.

4.5. Place the load to be sterilized into the SS Box and put the SS Box back into the chamber of the dry heat sterilizer.

4.6. Close the pressure lock door, by pulling up the quick throw handle and turn the handle clockwise till the door is tight.

4.7. Switch on the main supply.

4.8. Set the temperature on the control panel depending upon the load to be sterilized.

For example: 2000C for Ampoules/Vials & 1100C for Wads.

4.9. Switch on the Heater 1, Heater 2, Heater 3, Damper and HEPA Filter.

4.10. The temperature will gradually rise and will be indicated by the temperature indicator.

4.11. Switch off the Damper and HEPA filter after the temperature reaches the 1500C, to remove water vapour from the chamber and filter the air which is coming from atmosphere to the chamber respectively.

4.12. Switch off anyone one of the heater after the temperature attains 2000C.

4.13. Maintain the same condition for validated time which is depending upon the load to be sterilized.

For example: 2 Hrs for Ampoules/Vials and 3 Hrs for Wads.

4.14. After the sterilization cycle is completed, Switch off the main supply.

4.15. Prior to unloading the sterilized load on the sterile side, Switch on HEPA filter & open the damper to reduce the temperature to 1000C and then switch off dryer. Make sure that the sterilized load has been cooled to room temperature and the door of Non-sterile area is closed.