SOP for Muffle Furnace : Pharmaceutical Guidelines

SOP for Muffle Furnace

Standard operating procedure of Muffle Furnace used in Quality Control for Sulfated Ash test.


       To describe the procedure for operation of Muffle Furnace.

2.0  SCOPE

       This SOP is applicable for the procedure for operation of Muffle Furnace.


       Officer/ Executive - Quality Control


       Manager - Quality Control


5.1  Ensure that the area is clean and the calibration due date of the temperature indicator is with in calibration period.
5.2  Switch “ON” the main power supply of the Muffle Furnace.
5.3  Bulb glows, which indicates the power supply to the instrument.
5.4  Set the required temperature by 3 switches provided on the panel
5.4.1  Push switch
5.4.2  Two potentiometric knobs (Coarse and Fine Knobs)
5.5  Press “PUSH SWITCH” and simultaneously turn the “COARSE” knob clockwise or anticlockwise near required temperature and then turn “FINE” knob to set exact temperature.
5.6  Release the PUSH SWITCH.
5.7  Reset the instrument in case the temperature exceeds 1160°C.
5.8  Enter details in usage log book after completion of analysis.

Related: SOP for Preventive Maintenance of Instrument


6.1  SOP - Standard Operating Procedure

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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